208425

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{397}}^1$

素因数の和:417

約数の個数: 24

約数和(自身を含む): 394816

約数和(自身を除く): 186391

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 397, 525, 1191, 1985, 2779, 5955, 8337, 9925, 13895, 29775, 41685, 69475, 208425]

約数ペア:

[(1, 208425), (3, 69475), (5, 41685), (7, 29775), (15, 13895), (21, 9925), (25, 8337), (35, 5955), (75, 2779), (105, 1985), (175, 1191), (397, 525)]