20565209865

素因数分解:

$3^1\times 5^1\times {\mathrm{31081}}^1\times {\mathrm{44111}}^1$

素因数の和:75200

約数の個数: 16

約数和(自身を含む): 32906140416

約数和(自身を除く): 12340930551

約数列:

[1, 3, 5, 15, 31081, 44111, 93243, 132333, 155405, 220555, 466215, 661665, 1371013991, 4113041973, 6855069955, 20565209865]

約数ペア:

[(1, 20565209865), (3, 6855069955), (5, 4113041973), (15, 1371013991), (31081, 661665), (44111, 466215), (93243, 220555), (132333, 155405)]