20213255733

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{389}}^1\times {\mathrm{42557}}^1$

素因数の和:42997

約数の個数: 32

約数和(自身を含む): 30274058880

約数和(自身を除く): 10060803147

約数列:

[1, 3, 11, 33, 37, 111, 389, 407, 1167, 1221, 4279, 12837, 14393, 42557, 43179, 127671, 158323, 468127, 474969, 1404381, 1574609, 4723827, 16554673, 17320699, 49664019, 51962097, 182101403, 546304209, 612522901, 1837568703, 6737751911, 20213255733]

約数ペア:

[(1, 20213255733), (3, 6737751911), (11, 1837568703), (33, 612522901), (37, 546304209), (111, 182101403), (389, 51962097), (407, 49664019), (1167, 17320699), (1221, 16554673), (4279, 4723827), (12837, 1574609), (14393, 1404381), (42557, 474969), (43179, 468127), (127671, 158323)]