21864310

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1543}}^1$

素因数の和:1672

約数の個数: 32

約数和(自身を含む): 42799680

約数和(自身を除く): 20935370

約数列:

[1, 2, 5, 10, 13, 26, 65, 109, 130, 218, 545, 1090, 1417, 1543, 2834, 3086, 7085, 7715, 14170, 15430, 20059, 40118, 100295, 168187, 200590, 336374, 840935, 1681870, 2186431, 4372862, 10932155, 21864310]

約数ペア:

[(1, 21864310), (2, 10932155), (5, 4372862), (10, 2186431), (13, 1681870), (26, 840935), (65, 336374), (109, 200590), (130, 168187), (218, 100295), (545, 40118), (1090, 20059), (1417, 15430), (1543, 14170), (2834, 7715), (3086, 7085)]