21357030

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{443}}^1\times {\mathrm{1607}}^1$

素因数の和:2060

約数の個数: 32

約数和(自身を含む): 51404544

約数和(自身を除く): 30047514

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 443, 886, 1329, 1607, 2215, 2658, 3214, 4430, 4821, 6645, 8035, 9642, 13290, 16070, 24105, 48210, 711901, 1423802, 2135703, 3559505, 4271406, 7119010, 10678515, 21357030]

約数ペア:

[(1, 21357030), (2, 10678515), (3, 7119010), (5, 4271406), (6, 3559505), (10, 2135703), (15, 1423802), (30, 711901), (443, 48210), (886, 24105), (1329, 16070), (1607, 13290), (2215, 9642), (2658, 8035), (3214, 6645), (4430, 4821)]