211237579

素因数分解:

$7^4\times {\mathrm{97}}^1\times {\mathrm{907}}^1$

素因数の和:1032

約数の個数: 20

約数和(自身を含む): 249244184

約数和(自身を除く): 38006605

約数列:

[1, 7, 49, 97, 343, 679, 907, 2401, 4753, 6349, 33271, 44443, 87979, 232897, 311101, 615853, 2177707, 4310971, 30176797, 211237579]

約数ペア:

[(1, 211237579), (7, 30176797), (49, 4310971), (97, 2177707), (343, 615853), (679, 311101), (907, 232897), (2401, 87979), (4753, 44443), (6349, 33271)]