19996210

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{153817}}^1$

素因数の和:153837

約数の個数: 16

約数和(自身を含む): 38762136

約数和(自身を除く): 18765926

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 153817, 307634, 769085, 1538170, 1999621, 3999242, 9998105, 19996210]

約数ペア:

[(1, 19996210), (2, 9998105), (5, 3999242), (10, 1999621), (13, 1538170), (26, 769085), (65, 307634), (130, 153817)]