26978215

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{15823}}^1$

素因数の和:15870

約数の個数: 16

約数和(自身を含む): 36458496

約数和(自身を除く): 9480281

約数列:

[1, 5, 11, 31, 55, 155, 341, 1705, 15823, 79115, 174053, 490513, 870265, 2452565, 5395643, 26978215]

約数ペア:

[(1, 26978215), (5, 5395643), (11, 2452565), (31, 870265), (55, 490513), (155, 174053), (341, 79115), (1705, 15823)]