18670675

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{223}}^1$

素因数の和:447

約数の個数: 24

約数和(自身を含む): 24748416

約数和(自身を除く): 6077741

約数列:

[1, 5, 17, 25, 85, 197, 223, 425, 985, 1115, 3349, 3791, 4925, 5575, 16745, 18955, 43931, 83725, 94775, 219655, 746827, 1098275, 3734135, 18670675]

約数ペア:

[(1, 18670675), (5, 3734135), (17, 1098275), (25, 746827), (85, 219655), (197, 94775), (223, 83725), (425, 43931), (985, 18955), (1115, 16745), (3349, 5575), (3791, 4925)]