397942713

素因数分解:

$3^4\times 7^1\times {\mathrm{349}}^1\times {\mathrm{2011}}^1$

素因数の和:2379

約数の個数: 40

約数和(自身を含む): 681665600

約数和(自身を除く): 283722887

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 349, 567, 1047, 2011, 2443, 3141, 6033, 7329, 9423, 14077, 18099, 21987, 28269, 42231, 54297, 65961, 126693, 162891, 197883, 380079, 701839, 1140237, 2105517, 4912873, 6316551, 14738619, 18949653, 44215857, 56848959, 132647571, 397942713]

約数ペア:

[(1, 397942713), (3, 132647571), (7, 56848959), (9, 44215857), (21, 18949653), (27, 14738619), (63, 6316551), (81, 4912873), (189, 2105517), (349, 1140237), (567, 701839), (1047, 380079), (2011, 197883), (2443, 162891), (3141, 126693), (6033, 65961), (7329, 54297), (9423, 42231), (14077, 28269), (18099, 21987)]