21243045

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^2\times {\mathrm{3923}}^1$

素因数の和:3969

約数の個数: 24

約数和(自身を含む): 35881056

約数和(自身を除く): 14638011

約数列:

[1, 3, 5, 15, 19, 57, 95, 285, 361, 1083, 1805, 3923, 5415, 11769, 19615, 58845, 74537, 223611, 372685, 1118055, 1416203, 4248609, 7081015, 21243045]

約数ペア:

[(1, 21243045), (3, 7081015), (5, 4248609), (15, 1416203), (19, 1118055), (57, 372685), (95, 223611), (285, 74537), (361, 58845), (1083, 19615), (1805, 11769), (3923, 5415)]