201721915

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{1229}}^1\times {\mathrm{1931}}^1$

素因数の和:3182

約数の個数: 16

約数和(自身を含む): 256646880

約数和(自身を除く): 54924965

約数列:

[1, 5, 17, 85, 1229, 1931, 6145, 9655, 20893, 32827, 104465, 164135, 2373199, 11865995, 40344383, 201721915]

約数ペア:

[(1, 201721915), (5, 40344383), (17, 11865995), (85, 2373199), (1229, 164135), (1931, 104465), (6145, 32827), (9655, 20893)]