21500648

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{12161}}^1$

素因数の和:12197

約数の個数: 32

約数和(自身を含む): 45972360

約数和(自身を除く): 24471712

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 12161, 24322, 48644, 97288, 158093, 206737, 316186, 413474, 632372, 826948, 1264744, 1653896, 2687581, 5375162, 10750324, 21500648]

約数ペア:

[(1, 21500648), (2, 10750324), (4, 5375162), (8, 2687581), (13, 1653896), (17, 1264744), (26, 826948), (34, 632372), (52, 413474), (68, 316186), (104, 206737), (136, 158093), (221, 97288), (442, 48644), (884, 24322), (1768, 12161)]