12121978

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{151}}^1$

素因数の和:294

約数の個数: 32

約数和(自身を含む): 20684160

約数和(自身を除く): 8562182

約数列:

[1, 2, 11, 22, 41, 82, 89, 151, 178, 302, 451, 902, 979, 1661, 1958, 3322, 3649, 6191, 7298, 12382, 13439, 26878, 40139, 68101, 80278, 136202, 147829, 295658, 550999, 1101998, 6060989, 12121978]

約数ペア:

[(1, 12121978), (2, 6060989), (11, 1101998), (22, 550999), (41, 295658), (82, 147829), (89, 136202), (151, 80278), (178, 68101), (302, 40139), (451, 26878), (902, 13439), (979, 12382), (1661, 7298), (1958, 6191), (3322, 3649)]