21472825

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{691}}^1$

素因数の和:825

約数の個数: 24

約数和(自身を含む): 29346336

約数和(自身を除く): 7873511

約数列:

[1, 5, 11, 25, 55, 113, 275, 565, 691, 1243, 2825, 3455, 6215, 7601, 17275, 31075, 38005, 78083, 190025, 390415, 858913, 1952075, 4294565, 21472825]

約数ペア:

[(1, 21472825), (5, 4294565), (11, 1952075), (25, 858913), (55, 390415), (113, 190025), (275, 78083), (565, 38005), (691, 31075), (1243, 17275), (2825, 7601), (3455, 6215)]