21152803960

素因数分解:

$2^3\times 5^1\times {\mathrm{528820099}}^1$

素因数の和:528820110

約数の個数: 16

約数和(自身を含む): 47593809000

約数和(自身を除く): 26441005040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 528820099, 1057640198, 2115280396, 2644100495, 4230560792, 5288200990, 10576401980, 21152803960]

約数ペア:

[(1, 21152803960), (2, 10576401980), (4, 5288200990), (5, 4230560792), (8, 2644100495), (10, 2115280396), (20, 1057640198), (40, 528820099)]