21695289

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13417}}^1$

素因数の和:13445

約数の個数: 24

約数和(自身を含む): 36711648

約数和(自身を除く): 15016359

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 147, 231, 539, 1617, 13417, 40251, 93919, 147587, 281757, 442761, 657433, 1033109, 1972299, 3099327, 7231763, 21695289]

約数ペア:

[(1, 21695289), (3, 7231763), (7, 3099327), (11, 1972299), (21, 1033109), (33, 657433), (49, 442761), (77, 281757), (147, 147587), (231, 93919), (539, 40251), (1617, 13417)]