21988278

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{93967}}^1$

素因数の和:93988

約数の個数: 24

約数和(自身を含む): 51306528

約数和(自身を除く): 29318250

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 93967, 187934, 281901, 563802, 845703, 1221571, 1691406, 2443142, 3664713, 7329426, 10994139, 21988278]

約数ペア:

[(1, 21988278), (2, 10994139), (3, 7329426), (6, 3664713), (9, 2443142), (13, 1691406), (18, 1221571), (26, 845703), (39, 563802), (78, 281901), (117, 187934), (234, 93967)]