21152175

素因数分解:

$3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{25639}}^1$

素因数の和:25663

約数の個数: 24

約数和(自身を含む): 38152320

約数和(自身を除く): 17000145

約数列:

[1, 3, 5, 11, 15, 25, 33, 55, 75, 165, 275, 825, 25639, 76917, 128195, 282029, 384585, 640975, 846087, 1410145, 1922925, 4230435, 7050725, 21152175]

約数ペア:

[(1, 21152175), (3, 7050725), (5, 4230435), (11, 1922925), (15, 1410145), (25, 846087), (33, 640975), (55, 384585), (75, 282029), (165, 128195), (275, 76917), (825, 25639)]