215856771

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{107}}^1\times {\mathrm{173}}^1$

素因数の和:332

約数の個数: 48

約数和(自身を含む): 330137856

約数和(自身を除く): 114281085

約数列:

[1, 3, 13, 23, 39, 69, 107, 169, 173, 299, 321, 507, 519, 897, 1391, 2249, 2461, 3887, 3979, 4173, 6747, 7383, 11661, 11937, 18083, 18511, 29237, 31993, 51727, 54249, 55533, 87711, 95979, 155181, 240643, 415909, 425753, 672451, 721929, 1247727, 1277259, 2017353, 3128359, 5534789, 9385077, 16604367, 71952257, 215856771]

約数ペア:

[(1, 215856771), (3, 71952257), (13, 16604367), (23, 9385077), (39, 5534789), (69, 3128359), (107, 2017353), (169, 1277259), (173, 1247727), (299, 721929), (321, 672451), (507, 425753), (519, 415909), (897, 240643), (1391, 155181), (2249, 95979), (2461, 87711), (3887, 55533), (3979, 54249), (4173, 51727), (6747, 31993), (7383, 29237), (11661, 18511), (11937, 18083)]