21022350

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{269}}^1\times {\mathrm{521}}^1$

素因数の和:805

約数の個数: 48

約数和(自身を含む): 52429680

約数和(自身を除く): 31407330

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150, 269, 521, 538, 807, 1042, 1345, 1563, 1614, 2605, 2690, 3126, 4035, 5210, 6725, 7815, 8070, 13025, 13450, 15630, 20175, 26050, 39075, 40350, 78150, 140149, 280298, 420447, 700745, 840894, 1401490, 2102235, 3503725, 4204470, 7007450, 10511175, 21022350]

約数ペア:

[(1, 21022350), (2, 10511175), (3, 7007450), (5, 4204470), (6, 3503725), (10, 2102235), (15, 1401490), (25, 840894), (30, 700745), (50, 420447), (75, 280298), (150, 140149), (269, 78150), (521, 40350), (538, 39075), (807, 26050), (1042, 20175), (1345, 15630), (1563, 13450), (1614, 13025), (2605, 8070), (2690, 7815), (3126, 6725), (4035, 5210)]