397718279

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{421}}^1\times {\mathrm{7103}}^1$

素因数の和:7550

約数の個数: 16

約数和(自身を含む): 479662080

約数和(自身を除く): 81943801

約数列:

[1, 7, 19, 133, 421, 2947, 7103, 7999, 49721, 55993, 134957, 944699, 2990363, 20932541, 56816897, 397718279]

約数ペア:

[(1, 397718279), (7, 56816897), (19, 20932541), (133, 2990363), (421, 944699), (2947, 134957), (7103, 55993), (7999, 49721)]