21304800472

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{140163161}}^1$

素因数の和:140163186

約数の個数: 16

約数和(自身を含む): 42048948600

約数和(自身を除く): 20744148128

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 140163161, 280326322, 560652644, 1121305288, 2663100059, 5326200118, 10652400236, 21304800472]

約数ペア:

[(1, 21304800472), (2, 10652400236), (4, 5326200118), (8, 2663100059), (19, 1121305288), (38, 560652644), (76, 280326322), (152, 140163161)]