21735987

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{773}}^1$

素因数の和:899

約数の個数: 32

約数和(自身を含む): 36062208

約数和(自身を除く): 14326221

約数列:

[1, 3, 7, 13, 21, 39, 91, 103, 273, 309, 721, 773, 1339, 2163, 2319, 4017, 5411, 9373, 10049, 16233, 28119, 30147, 70343, 79619, 211029, 238857, 557333, 1035047, 1671999, 3105141, 7245329, 21735987]

約数ペア:

[(1, 21735987), (3, 7245329), (7, 3105141), (13, 1671999), (21, 1035047), (39, 557333), (91, 238857), (103, 211029), (273, 79619), (309, 70343), (721, 30147), (773, 28119), (1339, 16233), (2163, 10049), (2319, 9373), (4017, 5411)]