21380112

素因数分解:

$2^4\times 3^7\times {\mathrm{13}}^1\times {\mathrm{47}}^1$

素因数の和:89

約数の個数: 160

約数和(自身を含む): 68328960

約数和(自身を除く): 46948848

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 27, 36, 39, 47, 48, 52, 54, 72, 78, 81, 94, 104, 108, 117, 141, 144, 156, 162, 188, 208, 216, 234, 243, 282, 312, 324, 351, 376, 423, 432, 468, 486, 564, 611, 624, 648, 702, 729, 752, 846, 936, 972, 1053, 1128, 1222, 1269, 1296, 1404, 1458, 1692, 1833, 1872, 1944, 2106, 2187, 2256, 2444, 2538, 2808, 2916, 3159, 3384, 3666, 3807, 3888, 4212, 4374, 4888, 5076, 5499, 5616, 5832, 6318, 6768, 7332, 7614, 8424, 8748, 9477, 9776, 10152, 10998, 11421, 11664, 12636, 14664, 15228, 16497, 16848, 17496, 18954, 20304, 21996, 22842, 25272, 28431, 29328, 30456, 32994, 34263, 34992, 37908, 43992, 45684, 49491, 50544, 56862, 60912, 65988, 68526, 75816, 87984, 91368, 98982, 102789, 113724, 131976, 137052, 148473, 151632, 182736, 197964, 205578, 227448, 263952, 274104, 296946, 395928, 411156, 445419, 454896, 548208, 593892, 791856, 822312, 890838, 1187784, 1336257, 1644624, 1781676, 2375568, 2672514, 3563352, 5345028, 7126704, 10690056, 21380112]

約数ペア:

[(1, 21380112), (2, 10690056), (3, 7126704), (4, 5345028), (6, 3563352), (8, 2672514), (9, 2375568), (12, 1781676), (13, 1644624), (16, 1336257), (18, 1187784), (24, 890838), (26, 822312), (27, 791856), (36, 593892), (39, 548208), (47, 454896), (48, 445419), (52, 411156), (54, 395928), (72, 296946), (78, 274104), (81, 263952), (94, 227448), (104, 205578), (108, 197964), (117, 182736), (141, 151632), (144, 148473), (156, 137052), (162, 131976), (188, 113724), (208, 102789), (216, 98982), (234, 91368), (243, 87984), (282, 75816), (312, 68526), (324, 65988), (351, 60912), (376, 56862), (423, 50544), (432, 49491), (468, 45684), (486, 43992), (564, 37908), (611, 34992), (624, 34263), (648, 32994), (702, 30456), (729, 29328), (752, 28431), (846, 25272), (936, 22842), (972, 21996), (1053, 20304), (1128, 18954), (1222, 17496), (1269, 16848), (1296, 16497), (1404, 15228), (1458, 14664), (1692, 12636), (1833, 11664), (1872, 11421), (1944, 10998), (2106, 10152), (2187, 9776), (2256, 9477), (2444, 8748), (2538, 8424), (2808, 7614), (2916, 7332), (3159, 6768), (3384, 6318), (3666, 5832), (3807, 5616), (3888, 5499), (4212, 5076), (4374, 4888)]