21378464517

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{139}}^1\times {\mathrm{2698279}}^1$

素因数の和:2698440

約数の個数: 16

約数和(自身を含む): 30220736000

約数和(自身を除く): 8842271483

約数列:

[1, 3, 19, 57, 139, 417, 2641, 7923, 2698279, 8094837, 51267301, 153801903, 375060781, 1125182343, 7126154839, 21378464517]

約数ペア:

[(1, 21378464517), (3, 7126154839), (19, 1125182343), (57, 375060781), (139, 153801903), (417, 51267301), (2641, 8094837), (7923, 2698279)]