21584885

素因数分解:

$5^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{4139}}^1$

素因数の和:4300

約数の個数: 16

約数和(自身を含む): 29808000

約数和(自身を除く): 8223115

約数列:

[1, 5, 7, 35, 149, 745, 1043, 4139, 5215, 20695, 28973, 144865, 616711, 3083555, 4316977, 21584885]

約数ペア:

[(1, 21584885), (5, 4316977), (7, 3083555), (35, 616711), (149, 144865), (745, 28973), (1043, 20695), (4139, 5215)]