21090180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{351503}}^1$

素因数の和:351515

約数の個数: 24

約数和(自身を含む): 59052672

約数和(自身を除く): 37962492

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 351503, 703006, 1054509, 1406012, 1757515, 2109018, 3515030, 4218036, 5272545, 7030060, 10545090, 21090180]

約数ペア:

[(1, 21090180), (2, 10545090), (3, 7030060), (4, 5272545), (5, 4218036), (6, 3515030), (10, 2109018), (12, 1757515), (15, 1406012), (20, 1054509), (30, 703006), (60, 351503)]