31648509

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{191}}^1$

素因数の和:255

約数の個数: 48

約数和(自身を含む): 52669440

約数和(自身を除く): 21020931

約数列:

[1, 3, 9, 17, 19, 27, 51, 57, 153, 171, 191, 323, 361, 459, 513, 573, 969, 1083, 1719, 2907, 3247, 3249, 3629, 5157, 6137, 8721, 9741, 9747, 10887, 18411, 29223, 32661, 55233, 61693, 68951, 87669, 97983, 165699, 185079, 206853, 555237, 620559, 1172167, 1665711, 1861677, 3516501, 10549503, 31648509]

約数ペア:

[(1, 31648509), (3, 10549503), (9, 3516501), (17, 1861677), (19, 1665711), (27, 1172167), (51, 620559), (57, 555237), (153, 206853), (171, 185079), (191, 165699), (323, 97983), (361, 87669), (459, 68951), (513, 61693), (573, 55233), (969, 32661), (1083, 29223), (1719, 18411), (2907, 10887), (3247, 9747), (3249, 9741), (3629, 8721), (5157, 6137)]