21283983

素因数分解:

$3^2\times 7^2\times {\mathrm{17}}^2\times {\mathrm{167}}^1$

素因数の和:221

約数の個数: 54

約数和(自身を含む): 38217816

約数和(自身を除く): 16933833

約数列:

[1, 3, 7, 9, 17, 21, 49, 51, 63, 119, 147, 153, 167, 289, 357, 441, 501, 833, 867, 1071, 1169, 1503, 2023, 2499, 2601, 2839, 3507, 6069, 7497, 8183, 8517, 10521, 14161, 18207, 19873, 24549, 25551, 42483, 48263, 59619, 73647, 127449, 139111, 144789, 178857, 337841, 417333, 434367, 1013523, 1251999, 2364887, 3040569, 7094661, 21283983]

約数ペア:

[(1, 21283983), (3, 7094661), (7, 3040569), (9, 2364887), (17, 1251999), (21, 1013523), (49, 434367), (51, 417333), (63, 337841), (119, 178857), (147, 144789), (153, 139111), (167, 127449), (289, 73647), (357, 59619), (441, 48263), (501, 42483), (833, 25551), (867, 24549), (1071, 19873), (1169, 18207), (1503, 14161), (2023, 10521), (2499, 8517), (2601, 8183), (2839, 7497), (3507, 6069)]