19815761

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{1871}}^1$

素因数の和:1984

約数の個数: 16

約数和(自身を含む): 24261120

約数和(自身を除く): 4445359

約数列:

[1, 7, 17, 89, 119, 623, 1513, 1871, 10591, 13097, 31807, 166519, 222649, 1165633, 2830823, 19815761]

約数ペア:

[(1, 19815761), (7, 2830823), (17, 1165633), (89, 222649), (119, 166519), (623, 31807), (1513, 13097), (1871, 10591)]