1387221

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{331}}^1$

素因数の和:472

約数の個数: 16

約数和(自身を含む): 2039808

約数和(自身を除く): 652587

約数列:

[1, 3, 11, 33, 127, 331, 381, 993, 1397, 3641, 4191, 10923, 42037, 126111, 462407, 1387221]

約数ペア:

[(1, 1387221), (3, 462407), (11, 126111), (33, 42037), (127, 10923), (331, 4191), (381, 3641), (993, 1397)]