18688117

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{1619}}^1$

素因数の和:1740

約数の個数: 16

約数和(自身を含む): 22861440

約数和(自身を除く): 4173323

約数列:

[1, 7, 17, 97, 119, 679, 1619, 1649, 11333, 11543, 27523, 157043, 192661, 1099301, 2669731, 18688117]

約数ペア:

[(1, 18688117), (7, 2669731), (17, 1099301), (97, 192661), (119, 157043), (679, 27523), (1619, 11543), (1649, 11333)]