21430507

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{229}}^1\times {\mathrm{461}}^1$

素因数の和:726

約数の個数: 16

約数和(自身を含む): 25502400

約数和(自身を除く): 4071893

約数列:

[1, 7, 29, 203, 229, 461, 1603, 3227, 6641, 13369, 46487, 93583, 105569, 738983, 3061501, 21430507]

約数ペア:

[(1, 21430507), (7, 3061501), (29, 738983), (203, 105569), (229, 93583), (461, 46487), (1603, 13369), (3227, 6641)]