20886789

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{12917}}^1$

素因数の和:12945

約数の個数: 24

約数和(自身を含む): 35343648

約数和(自身を除く): 14456859

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 12917, 38751, 90419, 142087, 271257, 426261, 632933, 994609, 1898799, 2983827, 6962263, 20886789]

約数ペア:

[(1, 20886789), (3, 6962263), (7, 2983827), (11, 1898799), (21, 994609), (33, 632933), (49, 426261), (77, 271257), (147, 142087), (231, 90419), (539, 38751), (1617, 12917)]