21267470

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{43403}}^1$

素因数の和:43424

約数の個数: 24

約数和(自身を含む): 44532504

約数和(自身を除く): 23265034

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490, 43403, 86806, 217015, 303821, 434030, 607642, 1519105, 2126747, 3038210, 4253494, 10633735, 21267470]

約数ペア:

[(1, 21267470), (2, 10633735), (5, 4253494), (7, 3038210), (10, 2126747), (14, 1519105), (35, 607642), (49, 434030), (70, 303821), (98, 217015), (245, 86806), (490, 43403)]