21343530

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{54727}}^1$

素因数の和:54750

約数の個数: 32

約数和(自身を含む): 55165824

約数和(自身を除く): 33822294

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 54727, 109454, 164181, 273635, 328362, 547270, 711451, 820905, 1422902, 1641810, 2134353, 3557255, 4268706, 7114510, 10671765, 21343530]

約数ペア:

[(1, 21343530), (2, 10671765), (3, 7114510), (5, 4268706), (6, 3557255), (10, 2134353), (13, 1641810), (15, 1422902), (26, 820905), (30, 711451), (39, 547270), (65, 328362), (78, 273635), (130, 164181), (195, 109454), (390, 54727)]