17985654

素因数分解:

$2^1\times 3^2\times {\mathrm{89}}^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1$

素因数の和:309

約数の個数: 48

約数和(自身を含む): 40154400

約数和(自身を除く): 22168746

約数列:

[1, 2, 3, 6, 9, 18, 89, 103, 109, 178, 206, 218, 267, 309, 327, 534, 618, 654, 801, 927, 981, 1602, 1854, 1962, 9167, 9701, 11227, 18334, 19402, 22454, 27501, 29103, 33681, 55002, 58206, 67362, 82503, 87309, 101043, 165006, 174618, 202086, 999203, 1998406, 2997609, 5995218, 8992827, 17985654]

約数ペア:

[(1, 17985654), (2, 8992827), (3, 5995218), (6, 2997609), (9, 1998406), (18, 999203), (89, 202086), (103, 174618), (109, 165006), (178, 101043), (206, 87309), (218, 82503), (267, 67362), (309, 58206), (327, 55002), (534, 33681), (618, 29103), (654, 27501), (801, 22454), (927, 19402), (981, 18334), (1602, 11227), (1854, 9701), (1962, 9167)]