21856030

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{312229}}^1$

素因数の和:312243

約数の個数: 16

約数和(自身を含む): 44961120

約数和(自身を除く): 23105090

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 312229, 624458, 1561145, 2185603, 3122290, 4371206, 10928015, 21856030]

約数ペア:

[(1, 21856030), (2, 10928015), (5, 4371206), (7, 3122290), (10, 2185603), (14, 1561145), (35, 624458), (70, 312229)]