21206835

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{36251}}^1$

素因数の和:36275

約数の個数: 24

約数和(自身を含む): 39587184

約数和(自身を除く): 18380349

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 585, 36251, 108753, 181255, 326259, 471263, 543765, 1413789, 1631295, 2356315, 4241367, 7068945, 21206835]

約数ペア:

[(1, 21206835), (3, 7068945), (5, 4241367), (9, 2356315), (13, 1631295), (15, 1413789), (39, 543765), (45, 471263), (65, 326259), (117, 181255), (195, 108753), (585, 36251)]