21738756

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{331}}^1\times {\mathrm{421}}^1$

素因数の和:772

約数の個数: 48

約数和(自身を含む): 54920768

約数和(自身を除く): 33182012

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 331, 421, 662, 842, 993, 1263, 1324, 1684, 1986, 2526, 3972, 4303, 5052, 5473, 8606, 10946, 12909, 16419, 17212, 21892, 25818, 32838, 51636, 65676, 139351, 278702, 418053, 557404, 836106, 1672212, 1811563, 3623126, 5434689, 7246252, 10869378, 21738756]

約数ペア:

[(1, 21738756), (2, 10869378), (3, 7246252), (4, 5434689), (6, 3623126), (12, 1811563), (13, 1672212), (26, 836106), (39, 557404), (52, 418053), (78, 278702), (156, 139351), (331, 65676), (421, 51636), (662, 32838), (842, 25818), (993, 21892), (1263, 17212), (1324, 16419), (1684, 12909), (1986, 10946), (2526, 8606), (3972, 5473), (4303, 5052)]