21426939905

素因数分解:

$5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{919}}^1\times {\mathrm{12569}}^1$

素因数の和:13553

約数の個数: 32

約数和(自身を含む): 29974924800

約数和(自身を除く): 8547984895

約数列:

[1, 5, 7, 35, 53, 265, 371, 919, 1855, 4595, 6433, 12569, 32165, 48707, 62845, 87983, 243535, 340949, 439915, 666157, 1704745, 3330785, 4663099, 11550911, 23315495, 57754555, 80856377, 404281885, 612198283, 3060991415, 4285387981, 21426939905]

約数ペア:

[(1, 21426939905), (5, 4285387981), (7, 3060991415), (35, 612198283), (53, 404281885), (265, 80856377), (371, 57754555), (919, 23315495), (1855, 11550911), (4595, 4663099), (6433, 3330785), (12569, 1704745), (32165, 666157), (48707, 439915), (62845, 340949), (87983, 243535)]