21273825

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{14929}}^1$

素因数の和:14961

約数の個数: 24

約数和(自身を含む): 37026400

約数和(自身を除く): 15752575

約数列:

[1, 3, 5, 15, 19, 25, 57, 75, 95, 285, 475, 1425, 14929, 44787, 74645, 223935, 283651, 373225, 850953, 1119675, 1418255, 4254765, 7091275, 21273825]

約数ペア:

[(1, 21273825), (3, 7091275), (5, 4254765), (15, 1418255), (19, 1119675), (25, 850953), (57, 373225), (75, 283651), (95, 223935), (285, 74645), (475, 44787), (1425, 14929)]