21302715

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8821}}^1$

素因数の和:8859

約数の個数: 32

約数和(自身を含む): 40651776

約数和(自身を除く): 19349061

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 161, 345, 483, 805, 2415, 8821, 26463, 44105, 61747, 132315, 185241, 202883, 308735, 608649, 926205, 1014415, 1420181, 3043245, 4260543, 7100905, 21302715]

約数ペア:

[(1, 21302715), (3, 7100905), (5, 4260543), (7, 3043245), (15, 1420181), (21, 1014415), (23, 926205), (35, 608649), (69, 308735), (105, 202883), (115, 185241), (161, 132315), (345, 61747), (483, 44105), (805, 26463), (2415, 8821)]