12643964

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{211}}^2$

素因数の和:497

約数の個数: 18

約数和(自身を含む): 22545432

約数和(自身を除く): 9901468

約数列:

[1, 2, 4, 71, 142, 211, 284, 422, 844, 14981, 29962, 44521, 59924, 89042, 178084, 3160991, 6321982, 12643964]

約数ペア:

[(1, 12643964), (2, 6321982), (4, 3160991), (71, 178084), (142, 89042), (211, 59924), (284, 44521), (422, 29962), (844, 14981)]