21818835

素因数分解:

$3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{7027}}^1$

素因数の和:7064

約数の個数: 32

約数和(自身を含む): 40481280

約数和(自身を除く): 18662445

約数列:

[1, 3, 5, 9, 15, 23, 27, 45, 69, 115, 135, 207, 345, 621, 1035, 3105, 7027, 21081, 35135, 63243, 105405, 161621, 189729, 316215, 484863, 808105, 948645, 1454589, 2424315, 4363767, 7272945, 21818835]

約数ペア:

[(1, 21818835), (3, 7272945), (5, 4363767), (9, 2424315), (15, 1454589), (23, 948645), (27, 808105), (45, 484863), (69, 316215), (115, 189729), (135, 161621), (207, 105405), (345, 63243), (621, 35135), (1035, 21081), (3105, 7027)]