19867016

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{661}}^1$

素因数の和:714

約数の個数: 48

約数和(自身を含む): 42679140

約数和(自身を除く): 22812124

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 289, 442, 578, 661, 884, 1156, 1322, 1768, 2312, 2644, 3757, 5288, 7514, 8593, 11237, 15028, 17186, 22474, 30056, 34372, 44948, 68744, 89896, 146081, 191029, 292162, 382058, 584324, 764116, 1168648, 1528232, 2483377, 4966754, 9933508, 19867016]

約数ペア:

[(1, 19867016), (2, 9933508), (4, 4966754), (8, 2483377), (13, 1528232), (17, 1168648), (26, 764116), (34, 584324), (52, 382058), (68, 292162), (104, 191029), (136, 146081), (221, 89896), (289, 68744), (442, 44948), (578, 34372), (661, 30056), (884, 22474), (1156, 17186), (1322, 15028), (1768, 11237), (2312, 8593), (2644, 7514), (3757, 5288)]