81575347

素因数分解:

$7^3\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:248

約数の個数: 32

約数和(自身を含む): 100800000

約数和(自身を除く): 19224653

約数列:

[1, 7, 29, 49, 59, 139, 203, 343, 413, 973, 1421, 1711, 2891, 4031, 6811, 8201, 9947, 11977, 20237, 28217, 47677, 57407, 83839, 197519, 237829, 401849, 586873, 1382633, 1664803, 2812943, 11653621, 81575347]

約数ペア:

[(1, 81575347), (7, 11653621), (29, 2812943), (49, 1664803), (59, 1382633), (139, 586873), (203, 401849), (343, 237829), (413, 197519), (973, 83839), (1421, 57407), (1711, 47677), (2891, 28217), (4031, 20237), (6811, 11977), (8201, 9947)]