19927312

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{821}}^1$

素因数の和:907

約数の個数: 40

約数和(自身を含む): 40669272

約数和(自身を除く): 20741960

約数列:

[1, 2, 4, 8, 16, 37, 41, 74, 82, 148, 164, 296, 328, 592, 656, 821, 1517, 1642, 3034, 3284, 6068, 6568, 12136, 13136, 24272, 30377, 33661, 60754, 67322, 121508, 134644, 243016, 269288, 486032, 538576, 1245457, 2490914, 4981828, 9963656, 19927312]

約数ペア:

[(1, 19927312), (2, 9963656), (4, 4981828), (8, 2490914), (16, 1245457), (37, 538576), (41, 486032), (74, 269288), (82, 243016), (148, 134644), (164, 121508), (296, 67322), (328, 60754), (592, 33661), (656, 30377), (821, 24272), (1517, 13136), (1642, 12136), (3034, 6568), (3284, 6068)]