21276585

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{811}}^1$

素因数の和:886

約数の個数: 48

約数和(自身を含む): 41041728

約数和(自身を除く): 19765143

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 53, 55, 99, 159, 165, 265, 477, 495, 583, 795, 811, 1749, 2385, 2433, 2915, 4055, 5247, 7299, 8745, 8921, 12165, 26235, 26763, 36495, 42983, 44605, 80289, 128949, 133815, 214915, 386847, 401445, 472813, 644745, 1418439, 1934235, 2364065, 4255317, 7092195, 21276585]

約数ペア:

[(1, 21276585), (3, 7092195), (5, 4255317), (9, 2364065), (11, 1934235), (15, 1418439), (33, 644745), (45, 472813), (53, 401445), (55, 386847), (99, 214915), (159, 133815), (165, 128949), (265, 80289), (477, 44605), (495, 42983), (583, 36495), (795, 26763), (811, 26235), (1749, 12165), (2385, 8921), (2433, 8745), (2915, 7299), (4055, 5247)]