20389638

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{2081}}^1$

素因数の和:2180

約数の個数: 32

約数和(自身を含む): 43172352

約数和(自身を除く): 22782714

約数列:

[1, 2, 3, 6, 23, 46, 69, 71, 138, 142, 213, 426, 1633, 2081, 3266, 4162, 4899, 6243, 9798, 12486, 47863, 95726, 143589, 147751, 287178, 295502, 443253, 886506, 3398273, 6796546, 10194819, 20389638]

約数ペア:

[(1, 20389638), (2, 10194819), (3, 6796546), (6, 3398273), (23, 886506), (46, 443253), (69, 295502), (71, 287178), (138, 147751), (142, 143589), (213, 95726), (426, 47863), (1633, 12486), (2081, 9798), (3266, 6243), (4162, 4899)]