39917997

素因数分解:

$3^2\times 7^3\times {\mathrm{67}}^1\times {\mathrm{193}}^1$

素因数の和:287

約数の個数: 48

約数和(自身を含む): 68598400

約数和(自身を除く): 28680403

約数列:

[1, 3, 7, 9, 21, 49, 63, 67, 147, 193, 201, 343, 441, 469, 579, 603, 1029, 1351, 1407, 1737, 3087, 3283, 4053, 4221, 9457, 9849, 12159, 12931, 22981, 28371, 29547, 38793, 66199, 68943, 85113, 90517, 116379, 198597, 206829, 271551, 595791, 633619, 814653, 1900857, 4435333, 5702571, 13305999, 39917997]

約数ペア:

[(1, 39917997), (3, 13305999), (7, 5702571), (9, 4435333), (21, 1900857), (49, 814653), (63, 633619), (67, 595791), (147, 271551), (193, 206829), (201, 198597), (343, 116379), (441, 90517), (469, 85113), (579, 68943), (603, 66199), (1029, 38793), (1351, 29547), (1407, 28371), (1737, 22981), (3087, 12931), (3283, 12159), (4053, 9849), (4221, 9457)]