18931017

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1\times {\mathrm{233}}^1$

素因数の和:369

約数の個数: 32

約数和(自身を含む): 29922048

約数和(自身を除く): 10991031

約数列:

[1, 3, 7, 21, 53, 73, 159, 219, 233, 371, 511, 699, 1113, 1533, 1631, 3869, 4893, 11607, 12349, 17009, 27083, 37047, 51027, 81249, 86443, 119063, 259329, 357189, 901477, 2704431, 6310339, 18931017]

約数ペア:

[(1, 18931017), (3, 6310339), (7, 2704431), (21, 901477), (53, 357189), (73, 259329), (159, 119063), (219, 86443), (233, 81249), (371, 51027), (511, 37047), (699, 27083), (1113, 17009), (1533, 12349), (1631, 11607), (3869, 4893)]