21065345090

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{1583}}^1\times {\mathrm{45887}}^1$

素因数の和:47506

約数の個数: 32

約数和(自身を含む): 39250759680

約数和(自身を除く): 18185414590

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 1583, 3166, 7915, 15830, 45887, 45907, 91774, 91814, 229435, 229535, 458870, 459070, 1330723, 2661446, 6653615, 13307230, 72639121, 145278242, 363195605, 726391210, 2106534509, 4213069018, 10532672545, 21065345090]

約数ペア:

[(1, 21065345090), (2, 10532672545), (5, 4213069018), (10, 2106534509), (29, 726391210), (58, 363195605), (145, 145278242), (290, 72639121), (1583, 13307230), (3166, 6653615), (7915, 2661446), (15830, 1330723), (45887, 459070), (45907, 458870), (91774, 229535), (91814, 229435)]