20129565

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{461}}^1$

素因数の和:581

約数の個数: 32

約数和(自身を含む): 33530112

約数和(自身を除く): 13400547

約数列:

[1, 3, 5, 15, 41, 71, 123, 205, 213, 355, 461, 615, 1065, 1383, 2305, 2911, 6915, 8733, 14555, 18901, 32731, 43665, 56703, 94505, 98193, 163655, 283515, 490965, 1341971, 4025913, 6709855, 20129565]

約数ペア:

[(1, 20129565), (3, 6709855), (5, 4025913), (15, 1341971), (41, 490965), (71, 283515), (123, 163655), (205, 98193), (213, 94505), (355, 56703), (461, 43665), (615, 32731), (1065, 18901), (1383, 14555), (2305, 8733), (2911, 6915)]