21371516

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{7309}}^1$

素因数の和:7373

約数の個数: 24

約数和(自身を含む): 40526640

約数和(自身を除く): 19155124

約数列:

[1, 2, 4, 17, 34, 43, 68, 86, 172, 731, 1462, 2924, 7309, 14618, 29236, 124253, 248506, 314287, 497012, 628574, 1257148, 5342879, 10685758, 21371516]

約数ペア:

[(1, 21371516), (2, 10685758), (4, 5342879), (17, 1257148), (34, 628574), (43, 497012), (68, 314287), (86, 248506), (172, 124253), (731, 29236), (1462, 14618), (2924, 7309)]