20741392

素因数分解:

$2^4\times 7^1\times {\mathrm{109}}^1\times {\mathrm{1699}}^1$

素因数の和:1823

約数の個数: 40

約数和(自身を含む): 46376000

約数和(自身を除く): 25634608

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 109, 112, 218, 436, 763, 872, 1526, 1699, 1744, 3052, 3398, 6104, 6796, 11893, 12208, 13592, 23786, 27184, 47572, 95144, 185191, 190288, 370382, 740764, 1296337, 1481528, 2592674, 2963056, 5185348, 10370696, 20741392]

約数ペア:

[(1, 20741392), (2, 10370696), (4, 5185348), (7, 2963056), (8, 2592674), (14, 1481528), (16, 1296337), (28, 740764), (56, 370382), (109, 190288), (112, 185191), (218, 95144), (436, 47572), (763, 27184), (872, 23786), (1526, 13592), (1699, 12208), (1744, 11893), (3052, 6796), (3398, 6104)]