21565995

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{4507}}^1$

素因数の和:4555

約数の個数: 32

約数和(自身を含む): 38949120

約数和(自身を除く): 17383125

約数列:

[1, 3, 5, 11, 15, 29, 33, 55, 87, 145, 165, 319, 435, 957, 1595, 4507, 4785, 13521, 22535, 49577, 67605, 130703, 148731, 247885, 392109, 653515, 743655, 1437733, 1960545, 4313199, 7188665, 21565995]

約数ペア:

[(1, 21565995), (3, 7188665), (5, 4313199), (11, 1960545), (15, 1437733), (29, 743655), (33, 653515), (55, 392109), (87, 247885), (145, 148731), (165, 130703), (319, 67605), (435, 49577), (957, 22535), (1595, 13521), (4507, 4785)]