21733580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{443}}^1$

素因数の和:686

約数の個数: 48

約数和(自身を含む): 50125824

約数和(自身を除く): 28392244

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 223, 443, 446, 886, 892, 1115, 1772, 2215, 2230, 2453, 4430, 4460, 4873, 4906, 8860, 9746, 9812, 12265, 19492, 24365, 24530, 48730, 49060, 97460, 98789, 197578, 395156, 493945, 987890, 1086679, 1975780, 2173358, 4346716, 5433395, 10866790, 21733580]

約数ペア:

[(1, 21733580), (2, 10866790), (4, 5433395), (5, 4346716), (10, 2173358), (11, 1975780), (20, 1086679), (22, 987890), (44, 493945), (55, 395156), (110, 197578), (220, 98789), (223, 97460), (443, 49060), (446, 48730), (886, 24530), (892, 24365), (1115, 19492), (1772, 12265), (2215, 9812), (2230, 9746), (2453, 8860), (4430, 4906), (4460, 4873)]