19975735

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{1609}}^1$

素因数の和:1818

約数の個数: 16

約数和(自身を含む): 25966080

約数和(自身を除く): 5990345

約数列:

[1, 5, 13, 65, 191, 955, 1609, 2483, 8045, 12415, 20917, 104585, 307319, 1536595, 3995147, 19975735]

約数ペア:

[(1, 19975735), (5, 3995147), (13, 1536595), (65, 307319), (191, 104585), (955, 20917), (1609, 12415), (2483, 8045)]