21113775

素因数分解:

$3^2\times 5^2\times {\mathrm{107}}^1\times {\mathrm{877}}^1$

素因数の和:1000

約数の個数: 36

約数和(自身を含む): 38214072

約数和(自身を除く): 17100297

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 107, 225, 321, 535, 877, 963, 1605, 2631, 2675, 4385, 4815, 7893, 8025, 13155, 21925, 24075, 39465, 65775, 93839, 197325, 281517, 469195, 844551, 1407585, 2345975, 4222755, 7037925, 21113775]

約数ペア:

[(1, 21113775), (3, 7037925), (5, 4222755), (9, 2345975), (15, 1407585), (25, 844551), (45, 469195), (75, 281517), (107, 197325), (225, 93839), (321, 65775), (535, 39465), (877, 24075), (963, 21925), (1605, 13155), (2631, 8025), (2675, 7893), (4385, 4815)]