1921473

素因数分解:

$3^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:205

約数の個数: 24

約数和(自身を含む): 2935296

約数和(自身を除く): 1013823

約数列:

[1, 3, 9, 31, 71, 93, 97, 213, 279, 291, 639, 873, 2201, 3007, 6603, 6887, 9021, 19809, 20661, 27063, 61983, 213497, 640491, 1921473]

約数ペア:

[(1, 1921473), (3, 640491), (9, 213497), (31, 61983), (71, 27063), (93, 20661), (97, 19809), (213, 9021), (279, 6887), (291, 6603), (639, 3007), (873, 2201)]