198975

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{379}}^1$

素因数の和:399

約数の個数: 24

約数和(自身を含む): 376960

約数和(自身を除く): 177985

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 379, 525, 1137, 1895, 2653, 5685, 7959, 9475, 13265, 28425, 39795, 66325, 198975]

約数ペア:

[(1, 198975), (3, 66325), (5, 39795), (7, 28425), (15, 13265), (21, 9475), (25, 7959), (35, 5685), (75, 2653), (105, 1895), (175, 1137), (379, 525)]