19868210

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{64091}}^1$

素因数の和:64129

約数の個数: 16

約数和(自身を含む): 36916992

約数和(自身を除く): 17048782

約数列:

[1, 2, 5, 10, 31, 62, 155, 310, 64091, 128182, 320455, 640910, 1986821, 3973642, 9934105, 19868210]

約数ペア:

[(1, 19868210), (2, 9934105), (5, 3973642), (10, 1986821), (31, 640910), (62, 320455), (155, 128182), (310, 64091)]