21638574

素因数分解:

$2^1\times 3^2\times {\mathrm{79}}^1\times {\mathrm{15217}}^1$

素因数の和:15304

約数の個数: 24

約数和(自身を含む): 47480160

約数和(自身を除く): 25841586

約数列:

[1, 2, 3, 6, 9, 18, 79, 158, 237, 474, 711, 1422, 15217, 30434, 45651, 91302, 136953, 273906, 1202143, 2404286, 3606429, 7212858, 10819287, 21638574]

約数ペア:

[(1, 21638574), (2, 10819287), (3, 7212858), (6, 3606429), (9, 2404286), (18, 1202143), (79, 273906), (158, 136953), (237, 91302), (474, 45651), (711, 30434), (1422, 15217)]