21165634

素因数分解:

$2^1\times 7^1\times {\mathrm{379}}^1\times {\mathrm{3989}}^1$

素因数の和:4377

約数の個数: 16

約数和(自身を含む): 36388800

約数和(自身を除く): 15223166

約数列:

[1, 2, 7, 14, 379, 758, 2653, 3989, 5306, 7978, 27923, 55846, 1511831, 3023662, 10582817, 21165634]

約数ペア:

[(1, 21165634), (2, 10582817), (7, 3023662), (14, 1511831), (379, 55846), (758, 27923), (2653, 7978), (3989, 5306)]