388973991

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1089563}}^1$

素因数の和:1089590

約数の個数: 16

約数和(自身を含む): 627588864

約数和(自身を除く): 238614873

約数列:

[1, 3, 7, 17, 21, 51, 119, 357, 1089563, 3268689, 7626941, 18522571, 22880823, 55567713, 129657997, 388973991]

約数ペア:

[(1, 388973991), (3, 129657997), (7, 55567713), (17, 22880823), (21, 18522571), (51, 7626941), (119, 3268689), (357, 1089563)]