138258819

素因数分解:

$3^4\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1579}}^1$

素因数の和:1661

約数の個数: 40

約数和(自身を含む): 220239360

約数和(自身を除く): 81980541

約数列:

[1, 3, 9, 23, 27, 47, 69, 81, 141, 207, 423, 621, 1081, 1269, 1579, 1863, 3243, 3807, 4737, 9729, 14211, 29187, 36317, 42633, 74213, 87561, 108951, 127899, 222639, 326853, 667917, 980559, 1706899, 2003751, 2941677, 5120697, 6011253, 15362091, 46086273, 138258819]

約数ペア:

[(1, 138258819), (3, 46086273), (9, 15362091), (23, 6011253), (27, 5120697), (47, 2941677), (69, 2003751), (81, 1706899), (141, 980559), (207, 667917), (423, 326853), (621, 222639), (1081, 127899), (1269, 108951), (1579, 87561), (1863, 74213), (3243, 42633), (3807, 36317), (4737, 29187), (9729, 14211)]