20744828

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{757}}^1$

素因数の和:822

約数の個数: 48

約数和(自身を含む): 42787584

約数和(自身を除く): 22042756

約数列:

[1, 2, 4, 13, 17, 26, 31, 34, 52, 62, 68, 124, 221, 403, 442, 527, 757, 806, 884, 1054, 1514, 1612, 2108, 3028, 6851, 9841, 12869, 13702, 19682, 23467, 25738, 27404, 39364, 46934, 51476, 93868, 167297, 305071, 334594, 398939, 610142, 669188, 797878, 1220284, 1595756, 5186207, 10372414, 20744828]

約数ペア:

[(1, 20744828), (2, 10372414), (4, 5186207), (13, 1595756), (17, 1220284), (26, 797878), (31, 669188), (34, 610142), (52, 398939), (62, 334594), (68, 305071), (124, 167297), (221, 93868), (403, 51476), (442, 46934), (527, 39364), (757, 27404), (806, 25738), (884, 23467), (1054, 19682), (1514, 13702), (1612, 12869), (2108, 9841), (3028, 6851)]