18933561

素因数分解:

$3^3\times {\mathrm{53}}^1\times {\mathrm{101}}^1\times {\mathrm{131}}^1$

素因数の和:294

約数の個数: 32

約数和(自身を含む): 29082240

約数和(自身を除く): 10148679

約数列:

[1, 3, 9, 27, 53, 101, 131, 159, 303, 393, 477, 909, 1179, 1431, 2727, 3537, 5353, 6943, 13231, 16059, 20829, 39693, 48177, 62487, 119079, 144531, 187461, 357237, 701243, 2103729, 6311187, 18933561]

約数ペア:

[(1, 18933561), (3, 6311187), (9, 2103729), (27, 701243), (53, 357237), (101, 187461), (131, 144531), (159, 119079), (303, 62487), (393, 48177), (477, 39693), (909, 20829), (1179, 16059), (1431, 13231), (2727, 6943), (3537, 5353)]