211564801

素因数分解:

$7^3\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{197}}^1$

素因数の和:350

約数の個数: 32

約数和(自身を含む): 258508800

約数和(自身を除く): 46943999

約数列:

[1, 7, 31, 49, 101, 197, 217, 343, 707, 1379, 1519, 3131, 4949, 6107, 9653, 10633, 19897, 21917, 34643, 42749, 67571, 139279, 153419, 299243, 616807, 974953, 1073933, 2094701, 4317649, 6824671, 30223543, 211564801]

約数ペア:

[(1, 211564801), (7, 30223543), (31, 6824671), (49, 4317649), (101, 2094701), (197, 1073933), (217, 974953), (343, 616807), (707, 299243), (1379, 153419), (1519, 139279), (3131, 67571), (4949, 42749), (6107, 34643), (9653, 21917), (10633, 19897)]