21397832

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{3659}}^1$

素因数の和:3725

約数の個数: 32

約数和(自身を含む): 43480800

約数和(自身を除く): 22082968

約数列:

[1, 2, 4, 8, 17, 34, 43, 68, 86, 136, 172, 344, 731, 1462, 2924, 3659, 5848, 7318, 14636, 29272, 62203, 124406, 157337, 248812, 314674, 497624, 629348, 1258696, 2674729, 5349458, 10698916, 21397832]

約数ペア:

[(1, 21397832), (2, 10698916), (4, 5349458), (8, 2674729), (17, 1258696), (34, 629348), (43, 497624), (68, 314674), (86, 248812), (136, 157337), (172, 124406), (344, 62203), (731, 29272), (1462, 14636), (2924, 7318), (3659, 5848)]