21870475

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{1187}}^1$

素因数の和:1275

約数の個数: 24

約数和(自身を含む): 30051648

約数和(自身を除く): 8181173

約数列:

[1, 5, 11, 25, 55, 67, 275, 335, 737, 1187, 1675, 3685, 5935, 13057, 18425, 29675, 65285, 79529, 326425, 397645, 874819, 1988225, 4374095, 21870475]

約数ペア:

[(1, 21870475), (5, 4374095), (11, 1988225), (25, 874819), (55, 397645), (67, 326425), (275, 79529), (335, 65285), (737, 29675), (1187, 18425), (1675, 13057), (3685, 5935)]