21399315

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{8861}}^1$

素因数の和:8899

約数の個数: 32

約数和(自身を含む): 40836096

約数和(自身を除く): 19436781

約数列:

[1, 3, 5, 7, 15, 21, 23, 35, 69, 105, 115, 161, 345, 483, 805, 2415, 8861, 26583, 44305, 62027, 132915, 186081, 203803, 310135, 611409, 930405, 1019015, 1426621, 3057045, 4279863, 7133105, 21399315]

約数ペア:

[(1, 21399315), (3, 7133105), (5, 4279863), (7, 3057045), (15, 1426621), (21, 1019015), (23, 930405), (35, 611409), (69, 310135), (105, 203803), (115, 186081), (161, 132915), (345, 62027), (483, 44305), (805, 26583), (2415, 8861)]