20906912

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{1733}}^1$

素因数の和:1785

約数の個数: 48

約数和(自身を含む): 45881640

約数和(自身を除く): 24974728

約数列:

[1, 2, 4, 8, 13, 16, 26, 29, 32, 52, 58, 104, 116, 208, 232, 377, 416, 464, 754, 928, 1508, 1733, 3016, 3466, 6032, 6932, 12064, 13864, 22529, 27728, 45058, 50257, 55456, 90116, 100514, 180232, 201028, 360464, 402056, 653341, 720928, 804112, 1306682, 1608224, 2613364, 5226728, 10453456, 20906912]

約数ペア:

[(1, 20906912), (2, 10453456), (4, 5226728), (8, 2613364), (13, 1608224), (16, 1306682), (26, 804112), (29, 720928), (32, 653341), (52, 402056), (58, 360464), (104, 201028), (116, 180232), (208, 100514), (232, 90116), (377, 55456), (416, 50257), (464, 45058), (754, 27728), (928, 22529), (1508, 13864), (1733, 12064), (3016, 6932), (3466, 6032)]