20509398

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{659}}^1$

素因数の和:706

約数の個数: 96

約数和(自身を含む): 57657600

約数和(自身を除く): 37148202

約数列:

[1, 2, 3, 6, 7, 9, 13, 14, 18, 19, 21, 26, 38, 39, 42, 57, 63, 78, 91, 114, 117, 126, 133, 171, 182, 234, 247, 266, 273, 342, 399, 494, 546, 659, 741, 798, 819, 1197, 1318, 1482, 1638, 1729, 1977, 2223, 2394, 3458, 3954, 4446, 4613, 5187, 5931, 8567, 9226, 10374, 11862, 12521, 13839, 15561, 17134, 25042, 25701, 27678, 31122, 37563, 41517, 51402, 59969, 75126, 77103, 83034, 87647, 112689, 119938, 154206, 162773, 175294, 179907, 225378, 262941, 325546, 359814, 488319, 525882, 539721, 788823, 976638, 1079442, 1139411, 1464957, 1577646, 2278822, 2929914, 3418233, 6836466, 10254699, 20509398]

約数ペア:

[(1, 20509398), (2, 10254699), (3, 6836466), (6, 3418233), (7, 2929914), (9, 2278822), (13, 1577646), (14, 1464957), (18, 1139411), (19, 1079442), (21, 976638), (26, 788823), (38, 539721), (39, 525882), (42, 488319), (57, 359814), (63, 325546), (78, 262941), (91, 225378), (114, 179907), (117, 175294), (126, 162773), (133, 154206), (171, 119938), (182, 112689), (234, 87647), (247, 83034), (266, 77103), (273, 75126), (342, 59969), (399, 51402), (494, 41517), (546, 37563), (659, 31122), (741, 27678), (798, 25701), (819, 25042), (1197, 17134), (1318, 15561), (1482, 13839), (1638, 12521), (1729, 11862), (1977, 10374), (2223, 9226), (2394, 8567), (3458, 5931), (3954, 5187), (4446, 4613)]