289493757

素因数分解:

$3^4\times 7^1\times {\mathrm{103}}^1\times {\mathrm{4957}}^1$

素因数の和:5079

約数の個数: 40

約数和(自身を含む): 499131776

約数和(自身を除く): 209638019

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 103, 189, 309, 567, 721, 927, 2163, 2781, 4957, 6489, 8343, 14871, 19467, 34699, 44613, 58401, 104097, 133839, 312291, 401517, 510571, 936873, 1531713, 2810619, 3573997, 4595139, 10721991, 13785417, 32165973, 41356251, 96497919, 289493757]

約数ペア:

[(1, 289493757), (3, 96497919), (7, 41356251), (9, 32165973), (21, 13785417), (27, 10721991), (63, 4595139), (81, 3573997), (103, 2810619), (189, 1531713), (309, 936873), (567, 510571), (721, 401517), (927, 312291), (2163, 133839), (2781, 104097), (4957, 58401), (6489, 44613), (8343, 34699), (14871, 19467)]