17697897

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{139}}^1$

素因数の和:242

約数の個数: 48

約数和(自身を含む): 30750720

約数和(自身を除く): 13052823

約数列:

[1, 3, 7, 9, 21, 43, 47, 63, 129, 139, 141, 301, 329, 387, 417, 423, 903, 973, 987, 1251, 2021, 2709, 2919, 2961, 5977, 6063, 6533, 8757, 14147, 17931, 18189, 19599, 41839, 42441, 45731, 53793, 58797, 125517, 127323, 137193, 280919, 376551, 411579, 842757, 1966433, 2528271, 5899299, 17697897]

約数ペア:

[(1, 17697897), (3, 5899299), (7, 2528271), (9, 1966433), (21, 842757), (43, 411579), (47, 376551), (63, 280919), (129, 137193), (139, 127323), (141, 125517), (301, 58797), (329, 53793), (387, 45731), (417, 42441), (423, 41839), (903, 19599), (973, 18189), (987, 17931), (1251, 14147), (2021, 8757), (2709, 6533), (2919, 6063), (2961, 5977)]