20942825

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{443}}^1$

素因数の和:545

約数の個数: 24

約数和(自身を含む): 27307776

約数和(自身を除く): 6364951

約数列:

[1, 5, 25, 31, 61, 155, 305, 443, 775, 1525, 1891, 2215, 9455, 11075, 13733, 27023, 47275, 68665, 135115, 343325, 675575, 837713, 4188565, 20942825]

約数ペア:

[(1, 20942825), (5, 4188565), (25, 837713), (31, 675575), (61, 343325), (155, 135115), (305, 68665), (443, 47275), (775, 27023), (1525, 13733), (1891, 11075), (2215, 9455)]