20993336

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{28837}}^1$

素因数の和:28863

約数の個数: 32

約数和(自身を含む): 48447840

約数和(自身を除く): 27454504

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 28837, 57674, 115348, 201859, 230696, 374881, 403718, 749762, 807436, 1499524, 1614872, 2624167, 2999048, 5248334, 10496668, 20993336]

約数ペア:

[(1, 20993336), (2, 10496668), (4, 5248334), (7, 2999048), (8, 2624167), (13, 1614872), (14, 1499524), (26, 807436), (28, 749762), (52, 403718), (56, 374881), (91, 230696), (104, 201859), (182, 115348), (364, 57674), (728, 28837)]