21002175

素因数分解:

$3^2\times 5^2\times {\mathrm{269}}^1\times {\mathrm{347}}^1$

素因数の和:632

約数の個数: 36

約数和(自身を含む): 37865880

約数和(自身を除く): 16863705

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 269, 347, 807, 1041, 1345, 1735, 2421, 3123, 4035, 5205, 6725, 8675, 12105, 15615, 20175, 26025, 60525, 78075, 93343, 280029, 466715, 840087, 1400145, 2333575, 4200435, 7000725, 21002175]

約数ペア:

[(1, 21002175), (3, 7000725), (5, 4200435), (9, 2333575), (15, 1400145), (25, 840087), (45, 466715), (75, 280029), (225, 93343), (269, 78075), (347, 60525), (807, 26025), (1041, 20175), (1345, 15615), (1735, 12105), (2421, 8675), (3123, 6725), (4035, 5205)]