21270595

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:235

約数の個数: 32

約数和(自身を含む): 28385280

約数和(自身を除く): 7114685

約数列:

[1, 5, 19, 41, 43, 95, 127, 205, 215, 635, 779, 817, 1763, 2413, 3895, 4085, 5207, 5461, 8815, 12065, 26035, 27305, 33497, 98933, 103759, 167485, 223901, 494665, 518795, 1119505, 4254119, 21270595]

約数ペア:

[(1, 21270595), (5, 4254119), (19, 1119505), (41, 518795), (43, 494665), (95, 223901), (127, 167485), (205, 103759), (215, 98933), (635, 33497), (779, 27305), (817, 26035), (1763, 12065), (2413, 8815), (3895, 5461), (4085, 5207)]