20884773

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{677}}^1$

素因数の和:813

約数の個数: 32

約数和(自身を含む): 34626816

約数和(自身を除く): 13742043

約数列:

[1, 3, 7, 13, 21, 39, 91, 113, 273, 339, 677, 791, 1469, 2031, 2373, 4407, 4739, 8801, 10283, 14217, 26403, 30849, 61607, 76501, 184821, 229503, 535507, 994513, 1606521, 2983539, 6961591, 20884773]

約数ペア:

[(1, 20884773), (3, 6961591), (7, 2983539), (13, 1606521), (21, 994513), (39, 535507), (91, 229503), (113, 184821), (273, 76501), (339, 61607), (677, 30849), (791, 26403), (1469, 14217), (2031, 10283), (2373, 8801), (4407, 4739)]