21420156

素因数分解:

$2^2\times 3^1\times {\mathrm{47}}^1\times {\mathrm{163}}^1\times {\mathrm{233}}^1$

素因数の和:450

約数の個数: 48

約数和(自身を含む): 51577344

約数和(自身を除く): 30157188

約数列:

[1, 2, 3, 4, 6, 12, 47, 94, 141, 163, 188, 233, 282, 326, 466, 489, 564, 652, 699, 932, 978, 1398, 1956, 2796, 7661, 10951, 15322, 21902, 22983, 30644, 32853, 37979, 43804, 45966, 65706, 75958, 91932, 113937, 131412, 151916, 227874, 455748, 1785013, 3570026, 5355039, 7140052, 10710078, 21420156]

約数ペア:

[(1, 21420156), (2, 10710078), (3, 7140052), (4, 5355039), (6, 3570026), (12, 1785013), (47, 455748), (94, 227874), (141, 151916), (163, 131412), (188, 113937), (233, 91932), (282, 75958), (326, 65706), (466, 45966), (489, 43804), (564, 37979), (652, 32853), (699, 30644), (932, 22983), (978, 21902), (1398, 15322), (1956, 10951), (2796, 7661)]