4026978

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:239

約数の個数: 48

約数和(自身を含む): 9300096

約数和(自身を除く): 5273118

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 71, 137, 138, 142, 207, 213, 274, 411, 414, 426, 639, 822, 1233, 1278, 1633, 2466, 3151, 3266, 4899, 6302, 9453, 9727, 9798, 14697, 18906, 19454, 28359, 29181, 29394, 56718, 58362, 87543, 175086, 223721, 447442, 671163, 1342326, 2013489, 4026978]

約数ペア:

[(1, 4026978), (2, 2013489), (3, 1342326), (6, 671163), (9, 447442), (18, 223721), (23, 175086), (46, 87543), (69, 58362), (71, 56718), (137, 29394), (138, 29181), (142, 28359), (207, 19454), (213, 18906), (274, 14697), (411, 9798), (414, 9727), (426, 9453), (639, 6302), (822, 4899), (1233, 3266), (1278, 3151), (1633, 2466)]