21083308

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{1217}}^1$

素因数の和:1353

約数の個数: 24

約数和(自身を含む): 38060064

約数和(自身を除く): 16976756

約数列:

[1, 2, 4, 61, 71, 122, 142, 244, 284, 1217, 2434, 4331, 4868, 8662, 17324, 74237, 86407, 148474, 172814, 296948, 345628, 5270827, 10541654, 21083308]

約数ペア:

[(1, 21083308), (2, 10541654), (4, 5270827), (61, 345628), (71, 296948), (122, 172814), (142, 148474), (244, 86407), (284, 74237), (1217, 17324), (2434, 8662), (4331, 4868)]