21663830

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{607}}^1$

素因数の和:740

約数の個数: 32

約数和(自身を含む): 40449024

約数和(自身を除く): 18785194

約数列:

[1, 2, 5, 10, 43, 83, 86, 166, 215, 415, 430, 607, 830, 1214, 3035, 3569, 6070, 7138, 17845, 26101, 35690, 50381, 52202, 100762, 130505, 251905, 261010, 503810, 2166383, 4332766, 10831915, 21663830]

約数ペア:

[(1, 21663830), (2, 10831915), (5, 4332766), (10, 2166383), (43, 503810), (83, 261010), (86, 251905), (166, 130505), (215, 100762), (415, 52202), (430, 50381), (607, 35690), (830, 26101), (1214, 17845), (3035, 7138), (3569, 6070)]