21225129

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{127}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 31518720

約数和(自身を除く): 10293591

約数列:

[1, 3, 17, 29, 51, 87, 113, 127, 339, 381, 493, 1479, 1921, 2159, 3277, 3683, 5763, 6477, 9831, 11049, 14351, 43053, 55709, 62611, 167127, 187833, 243967, 416179, 731901, 1248537, 7075043, 21225129]

約数ペア:

[(1, 21225129), (3, 7075043), (17, 1248537), (29, 731901), (51, 416179), (87, 243967), (113, 187833), (127, 167127), (339, 62611), (381, 55709), (493, 43053), (1479, 14351), (1921, 11049), (2159, 9831), (3277, 6477), (3683, 5763)]