213707879

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{6991}}^1$

素因数の和:7406

約数の個数: 16

約数和(自身を含む): 267150336

約数和(自身を除く): 53442457

約数列:

[1, 7, 11, 77, 397, 2779, 4367, 6991, 30569, 48937, 76901, 538307, 2775427, 19427989, 30529697, 213707879]

約数ペア:

[(1, 213707879), (7, 30529697), (11, 19427989), (77, 2775427), (397, 538307), (2779, 76901), (4367, 48937), (6991, 30569)]