17948721

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{349}}^1$

素因数の和:469

約数の個数: 32

約数和(自身を含む): 28672000

約数和(自身を除く): 10723279

約数列:

[1, 3, 7, 21, 31, 79, 93, 217, 237, 349, 553, 651, 1047, 1659, 2443, 2449, 7329, 7347, 10819, 17143, 27571, 32457, 51429, 75733, 82713, 192997, 227199, 578991, 854701, 2564103, 5982907, 17948721]

約数ペア:

[(1, 17948721), (3, 5982907), (7, 2564103), (21, 854701), (31, 578991), (79, 227199), (93, 192997), (217, 82713), (237, 75733), (349, 51429), (553, 32457), (651, 27571), (1047, 17143), (1659, 10819), (2443, 7347), (2449, 7329)]