19312101

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{7691}}^1$

素因数の和:7734

約数の個数: 20

約数和(自身を含む): 29783424

約数和(自身を除く): 10471323

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 7691, 23073, 69219, 207657, 238421, 622971, 715263, 2145789, 6437367, 19312101]

約数ペア:

[(1, 19312101), (3, 6437367), (9, 2145789), (27, 715263), (31, 622971), (81, 238421), (93, 207657), (279, 69219), (837, 23073), (2511, 7691)]