21335640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{177797}}^1$

素因数の和:177811

約数の個数: 32

約数和(自身を含む): 64007280

約数和(自身を除く): 42671640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 177797, 355594, 533391, 711188, 888985, 1066782, 1422376, 1777970, 2133564, 2666955, 3555940, 4267128, 5333910, 7111880, 10667820, 21335640]

約数ペア:

[(1, 21335640), (2, 10667820), (3, 7111880), (4, 5333910), (5, 4267128), (6, 3555940), (8, 2666955), (10, 2133564), (12, 1777970), (15, 1422376), (20, 1066782), (24, 888985), (30, 711188), (40, 533391), (60, 355594), (120, 177797)]