388200729

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{7823}}^1$

素因数の和:7989

約数の個数: 32

約数和(自身を含む): 630927360

約数和(自身を除く): 242726631

約数列:

[1, 3, 7, 17, 21, 51, 119, 139, 357, 417, 973, 2363, 2919, 7089, 7823, 16541, 23469, 49623, 54761, 132991, 164283, 398973, 930937, 1087397, 2792811, 3262191, 7611779, 18485749, 22835337, 55457247, 129400243, 388200729]

約数ペア:

[(1, 388200729), (3, 129400243), (7, 55457247), (17, 22835337), (21, 18485749), (51, 7611779), (119, 3262191), (139, 2792811), (357, 1087397), (417, 930937), (973, 398973), (2363, 164283), (2919, 132991), (7089, 54761), (7823, 49623), (16541, 23469)]