21547590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{263}}^1\times {\mathrm{2731}}^1$

素因数の和:3004

約数の個数: 32

約数和(自身を含む): 51929856

約数和(自身を除く): 30382266

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 263, 526, 789, 1315, 1578, 2630, 2731, 3945, 5462, 7890, 8193, 13655, 16386, 27310, 40965, 81930, 718253, 1436506, 2154759, 3591265, 4309518, 7182530, 10773795, 21547590]

約数ペア:

[(1, 21547590), (2, 10773795), (3, 7182530), (5, 4309518), (6, 3591265), (10, 2154759), (15, 1436506), (30, 718253), (263, 81930), (526, 40965), (789, 27310), (1315, 16386), (1578, 13655), (2630, 8193), (2731, 7890), (3945, 5462)]