21683810

素因数分解:

$2^1\times 5^1\times {\mathrm{331}}^1\times {\mathrm{6551}}^1$

素因数の和:6889

約数の個数: 16

約数和(自身を含む): 39154752

約数和(自身を除く): 17470942

約数列:

[1, 2, 5, 10, 331, 662, 1655, 3310, 6551, 13102, 32755, 65510, 2168381, 4336762, 10841905, 21683810]

約数ペア:

[(1, 21683810), (2, 10841905), (5, 4336762), (10, 2168381), (331, 65510), (662, 32755), (1655, 13102), (3310, 6551)]