21900690

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{34763}}^1$

素因数の和:34783

約数の個数: 48

約数和(自身を含む): 65078208

約数和(自身を除く): 43177518

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 34763, 69526, 104289, 173815, 208578, 243341, 312867, 347630, 486682, 521445, 625734, 730023, 1042890, 1216705, 1460046, 1564335, 2190069, 2433410, 3128670, 3650115, 4380138, 7300230, 10950345, 21900690]

約数ペア:

[(1, 21900690), (2, 10950345), (3, 7300230), (5, 4380138), (6, 3650115), (7, 3128670), (9, 2433410), (10, 2190069), (14, 1564335), (15, 1460046), (18, 1216705), (21, 1042890), (30, 730023), (35, 625734), (42, 521445), (45, 486682), (63, 347630), (70, 312867), (90, 243341), (105, 208578), (126, 173815), (210, 104289), (315, 69526), (630, 34763)]