21917103

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{139}}^1\times {\mathrm{311}}^1$

素因数の和:479

約数の個数: 24

約数和(自身を含む): 31973760

約数和(自身を除く): 10056657

約数列:

[1, 3, 13, 39, 139, 169, 311, 417, 507, 933, 1807, 4043, 5421, 12129, 23491, 43229, 52559, 70473, 129687, 157677, 561977, 1685931, 7305701, 21917103]

約数ペア:

[(1, 21917103), (3, 7305701), (13, 1685931), (39, 561977), (139, 157677), (169, 129687), (311, 70473), (417, 52559), (507, 43229), (933, 23491), (1807, 12129), (4043, 5421)]