290997

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1$

素因数の和:193

約数の個数: 24

約数和(自身を含む): 499200

約数和(自身を除く): 208203

約数列:

[1, 3, 7, 9, 21, 31, 63, 93, 149, 217, 279, 447, 651, 1043, 1341, 1953, 3129, 4619, 9387, 13857, 32333, 41571, 96999, 290997]

約数ペア:

[(1, 290997), (3, 96999), (7, 41571), (9, 32333), (21, 13857), (31, 9387), (63, 4619), (93, 3129), (149, 1953), (217, 1341), (279, 1043), (447, 651)]