28685137

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1$

素因数の和:193

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 6151343

約数列:

[1, 13, 17, 31, 53, 79, 221, 403, 527, 689, 901, 1027, 1343, 1643, 2449, 4187, 6851, 11713, 17459, 21359, 27931, 31837, 41633, 54431, 71179, 129797, 363103, 541229, 925327, 1687361, 2206549, 28685137]

約数ペア:

[(1, 28685137), (13, 2206549), (17, 1687361), (31, 925327), (53, 541229), (79, 363103), (221, 129797), (403, 71179), (527, 54431), (689, 41633), (901, 31837), (1027, 27931), (1343, 21359), (1643, 17459), (2449, 11713), (4187, 6851)]