2157215

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{619}}^1$

素因数の和:682

約数の個数: 16

約数和(自身を含む): 2812320

約数和(自身を除く): 655105

約数列:

[1, 5, 17, 41, 85, 205, 619, 697, 3095, 3485, 10523, 25379, 52615, 126895, 431443, 2157215]

約数ペア:

[(1, 2157215), (5, 431443), (17, 126895), (41, 52615), (85, 25379), (205, 10523), (619, 3485), (697, 3095)]