21715140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{361919}}^1$

素因数の和:361931

約数の個数: 24

約数和(自身を含む): 60802560

約数和(自身を除く): 39087420

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 361919, 723838, 1085757, 1447676, 1809595, 2171514, 3619190, 4343028, 5428785, 7238380, 10857570, 21715140]

約数ペア:

[(1, 21715140), (2, 10857570), (3, 7238380), (4, 5428785), (5, 4343028), (6, 3619190), (10, 2171514), (12, 1809595), (15, 1447676), (20, 1085757), (30, 723838), (60, 361919)]