21098090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{162293}}^1$

素因数の和:162313

約数の個数: 16

約数和(自身を含む): 40898088

約数和(自身を除く): 19799998

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 162293, 324586, 811465, 1622930, 2109809, 4219618, 10549045, 21098090]

約数ペア:

[(1, 21098090), (2, 10549045), (5, 4219618), (10, 2109809), (13, 1622930), (26, 811465), (65, 324586), (130, 162293)]