315047721

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{5113}}^1$

素因数の和:5205

約数の個数: 32

約数和(自身を含む): 471306240

約数和(自身を除く): 156258519

約数列:

[1, 3, 19, 23, 47, 57, 69, 141, 437, 893, 1081, 1311, 2679, 3243, 5113, 15339, 20539, 61617, 97147, 117599, 240311, 291441, 352797, 720933, 2234381, 4565909, 5527153, 6703143, 13697727, 16581459, 105015907, 315047721]

約数ペア:

[(1, 315047721), (3, 105015907), (19, 16581459), (23, 13697727), (47, 6703143), (57, 5527153), (69, 4565909), (141, 2234381), (437, 720933), (893, 352797), (1081, 291441), (1311, 240311), (2679, 117599), (3243, 97147), (5113, 61617), (15339, 20539)]