20697768

素因数分解:

$2^3\times 3^7\times 7^1\times {\mathrm{13}}^2$

素因数の和:60

約数の個数: 192

約数和(自身を含む): 72028800

約数和(自身を除く): 51331032

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 18, 21, 24, 26, 27, 28, 36, 39, 42, 52, 54, 56, 63, 72, 78, 81, 84, 91, 104, 108, 117, 126, 156, 162, 168, 169, 182, 189, 216, 234, 243, 252, 273, 312, 324, 338, 351, 364, 378, 468, 486, 504, 507, 546, 567, 648, 676, 702, 728, 729, 756, 819, 936, 972, 1014, 1053, 1092, 1134, 1183, 1352, 1404, 1458, 1512, 1521, 1638, 1701, 1944, 2028, 2106, 2184, 2187, 2268, 2366, 2457, 2808, 2916, 3042, 3159, 3276, 3402, 3549, 4056, 4212, 4374, 4536, 4563, 4732, 4914, 5103, 5832, 6084, 6318, 6552, 6804, 7098, 7371, 8424, 8748, 9126, 9464, 9477, 9828, 10206, 10647, 12168, 12636, 13608, 13689, 14196, 14742, 15309, 17496, 18252, 18954, 19656, 20412, 21294, 22113, 25272, 27378, 28392, 28431, 29484, 30618, 31941, 36504, 37908, 40824, 41067, 42588, 44226, 54756, 56862, 58968, 61236, 63882, 66339, 75816, 82134, 85176, 88452, 95823, 109512, 113724, 122472, 123201, 127764, 132678, 164268, 176904, 191646, 199017, 227448, 246402, 255528, 265356, 287469, 328536, 369603, 383292, 398034, 492804, 530712, 574938, 739206, 766584, 796068, 862407, 985608, 1149876, 1478412, 1592136, 1724814, 2299752, 2587221, 2956824, 3449628, 5174442, 6899256, 10348884, 20697768]

約数ペア:

[(1, 20697768), (2, 10348884), (3, 6899256), (4, 5174442), (6, 3449628), (7, 2956824), (8, 2587221), (9, 2299752), (12, 1724814), (13, 1592136), (14, 1478412), (18, 1149876), (21, 985608), (24, 862407), (26, 796068), (27, 766584), (28, 739206), (36, 574938), (39, 530712), (42, 492804), (52, 398034), (54, 383292), (56, 369603), (63, 328536), (72, 287469), (78, 265356), (81, 255528), (84, 246402), (91, 227448), (104, 199017), (108, 191646), (117, 176904), (126, 164268), (156, 132678), (162, 127764), (168, 123201), (169, 122472), (182, 113724), (189, 109512), (216, 95823), (234, 88452), (243, 85176), (252, 82134), (273, 75816), (312, 66339), (324, 63882), (338, 61236), (351, 58968), (364, 56862), (378, 54756), (468, 44226), (486, 42588), (504, 41067), (507, 40824), (546, 37908), (567, 36504), (648, 31941), (676, 30618), (702, 29484), (728, 28431), (729, 28392), (756, 27378), (819, 25272), (936, 22113), (972, 21294), (1014, 20412), (1053, 19656), (1092, 18954), (1134, 18252), (1183, 17496), (1352, 15309), (1404, 14742), (1458, 14196), (1512, 13689), (1521, 13608), (1638, 12636), (1701, 12168), (1944, 10647), (2028, 10206), (2106, 9828), (2184, 9477), (2187, 9464), (2268, 9126), (2366, 8748), (2457, 8424), (2808, 7371), (2916, 7098), (3042, 6804), (3159, 6552), (3276, 6318), (3402, 6084), (3549, 5832), (4056, 5103), (4212, 4914), (4374, 4732), (4536, 4563)]