20783792

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1777}}^1$

素因数の和:1845

約数の個数: 40

約数和(自身を含む): 43653456

約数和(自身を除く): 22869664

約数列:

[1, 2, 4, 8, 16, 17, 34, 43, 68, 86, 136, 172, 272, 344, 688, 731, 1462, 1777, 2924, 3554, 5848, 7108, 11696, 14216, 28432, 30209, 60418, 76411, 120836, 152822, 241672, 305644, 483344, 611288, 1222576, 1298987, 2597974, 5195948, 10391896, 20783792]

約数ペア:

[(1, 20783792), (2, 10391896), (4, 5195948), (8, 2597974), (16, 1298987), (17, 1222576), (34, 611288), (43, 483344), (68, 305644), (86, 241672), (136, 152822), (172, 120836), (272, 76411), (344, 60418), (688, 30209), (731, 28432), (1462, 14216), (1777, 11696), (2924, 7108), (3554, 5848)]