12521385

素因数分解:

$3^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{719}}^1$

素因数の和:779

約数の個数: 40

約数和(自身を含む): 22999680

約数和(自身を除く): 10478295

約数列:

[1, 3, 5, 9, 15, 27, 43, 45, 81, 129, 135, 215, 387, 405, 645, 719, 1161, 1935, 2157, 3483, 3595, 5805, 6471, 10785, 17415, 19413, 30917, 32355, 58239, 92751, 97065, 154585, 278253, 291195, 463755, 834759, 1391265, 2504277, 4173795, 12521385]

約数ペア:

[(1, 12521385), (3, 4173795), (5, 2504277), (9, 1391265), (15, 834759), (27, 463755), (43, 291195), (45, 278253), (81, 154585), (129, 97065), (135, 92751), (215, 58239), (387, 32355), (405, 30917), (645, 19413), (719, 17415), (1161, 10785), (1935, 6471), (2157, 5805), (3483, 3595)]