217597005

素因数分解:

$3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{166741}}^1$

素因数の和:166781

約数の個数: 24

約数和(自身を含む): 390176280

約数和(自身を除く): 172579275

約数列:

[1, 3, 5, 9, 15, 29, 45, 87, 145, 261, 435, 1305, 166741, 500223, 833705, 1500669, 2501115, 4835489, 7503345, 14506467, 24177445, 43519401, 72532335, 217597005]

約数ペア:

[(1, 217597005), (3, 72532335), (5, 43519401), (9, 24177445), (15, 14506467), (29, 7503345), (45, 4835489), (87, 2501115), (145, 1500669), (261, 833705), (435, 500223), (1305, 166741)]