20447812

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{337}}^1$

素因数の和:556

約数の個数: 48

約数和(自身を含む): 44972928

約数和(自身を除く): 24525116

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 197, 308, 337, 394, 674, 788, 1348, 1379, 2167, 2359, 2758, 3707, 4334, 4718, 5516, 7414, 8668, 9436, 14828, 15169, 25949, 30338, 51898, 60676, 66389, 103796, 132778, 265556, 464723, 730279, 929446, 1460558, 1858892, 2921116, 5111953, 10223906, 20447812]

約数ペア:

[(1, 20447812), (2, 10223906), (4, 5111953), (7, 2921116), (11, 1858892), (14, 1460558), (22, 929446), (28, 730279), (44, 464723), (77, 265556), (154, 132778), (197, 103796), (308, 66389), (337, 60676), (394, 51898), (674, 30338), (788, 25949), (1348, 15169), (1379, 14828), (2167, 9436), (2359, 8668), (2758, 7414), (3707, 5516), (4334, 4718)]