18687305

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{613}}^1$

素因数の和:705

約数の個数: 32

約数和(自身を含む): 28057344

約数和(自身を除く): 9370039

約数列:

[1, 5, 7, 13, 35, 65, 67, 91, 335, 455, 469, 613, 871, 2345, 3065, 4291, 4355, 6097, 7969, 21455, 30485, 39845, 41071, 55783, 205355, 278915, 287497, 533923, 1437485, 2669615, 3737461, 18687305]

約数ペア:

[(1, 18687305), (5, 3737461), (7, 2669615), (13, 1437485), (35, 533923), (65, 287497), (67, 278915), (91, 205355), (335, 55783), (455, 41071), (469, 39845), (613, 30485), (871, 21455), (2345, 7969), (3065, 6097), (4291, 4355)]