2101955

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1$

素因数の和:298

約数の個数: 16

約数和(自身を含む): 2654208

約数和(自身を除く): 552253

約数列:

[1, 5, 31, 71, 155, 191, 355, 955, 2201, 5921, 11005, 13561, 29605, 67805, 420391, 2101955]

約数ペア:

[(1, 2101955), (5, 420391), (31, 67805), (71, 29605), (155, 13561), (191, 11005), (355, 5921), (955, 2201)]