81395853

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{103}}^1\times {\mathrm{311}}^1$

素因数の和:446

約数の個数: 48

約数和(自身を含む): 138098688

約数和(自身を除く): 56702835

約数列:

[1, 3, 7, 11, 21, 33, 77, 103, 121, 231, 309, 311, 363, 721, 847, 933, 1133, 2163, 2177, 2541, 3399, 3421, 6531, 7931, 10263, 12463, 23793, 23947, 32033, 37389, 37631, 71841, 87241, 96099, 112893, 224231, 261723, 263417, 352363, 672693, 790251, 1057089, 2466541, 3875993, 7399623, 11627979, 27131951, 81395853]

約数ペア:

[(1, 81395853), (3, 27131951), (7, 11627979), (11, 7399623), (21, 3875993), (33, 2466541), (77, 1057089), (103, 790251), (121, 672693), (231, 352363), (309, 263417), (311, 261723), (363, 224231), (721, 112893), (847, 96099), (933, 87241), (1133, 71841), (2163, 37631), (2177, 37389), (2541, 32033), (3399, 23947), (3421, 23793), (6531, 12463), (7931, 10263)]