19892912

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{1621}}^1$

素因数の和:1701

約数の個数: 40

約数和(自身を含む): 42236880

約数和(自身を除く): 22343968

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 59, 104, 118, 208, 236, 472, 767, 944, 1534, 1621, 3068, 3242, 6136, 6484, 12272, 12968, 21073, 25936, 42146, 84292, 95639, 168584, 191278, 337168, 382556, 765112, 1243307, 1530224, 2486614, 4973228, 9946456, 19892912]

約数ペア:

[(1, 19892912), (2, 9946456), (4, 4973228), (8, 2486614), (13, 1530224), (16, 1243307), (26, 765112), (52, 382556), (59, 337168), (104, 191278), (118, 168584), (208, 95639), (236, 84292), (472, 42146), (767, 25936), (944, 21073), (1534, 12968), (1621, 12272), (3068, 6484), (3242, 6136)]