172997237

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{257}}^1$

素因数の和:437

約数の個数: 32

約数和(自身を含む): 214589952

約数和(自身を除く): 41592715

約数列:

[1, 7, 23, 37, 113, 161, 257, 259, 791, 851, 1799, 2599, 4181, 5911, 5957, 9509, 18193, 29041, 29267, 41377, 66563, 96163, 203287, 218707, 667943, 673141, 1074517, 1530949, 4675601, 7521619, 24713891, 172997237]

約数ペア:

[(1, 172997237), (7, 24713891), (23, 7521619), (37, 4675601), (113, 1530949), (161, 1074517), (257, 673141), (259, 667943), (791, 218707), (851, 203287), (1799, 96163), (2599, 66563), (4181, 41377), (5911, 29267), (5957, 29041), (9509, 18193)]