909390399

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{199}}^1\times {\mathrm{643}}^1$

素因数の和:971

約数の個数: 32

約数和(自身を含む): 1285939200

約数和(自身を除く): 376548801

約数列:

[1, 3, 23, 69, 103, 199, 309, 597, 643, 1929, 2369, 4577, 7107, 13731, 14789, 20497, 44367, 61491, 66229, 127957, 198687, 383871, 471431, 1414293, 1523267, 2943011, 4569801, 8829033, 13179571, 39538713, 303130133, 909390399]

約数ペア:

[(1, 909390399), (3, 303130133), (23, 39538713), (69, 13179571), (103, 8829033), (199, 4569801), (309, 2943011), (597, 1523267), (643, 1414293), (1929, 471431), (2369, 383871), (4577, 198687), (7107, 127957), (13731, 66229), (14789, 61491), (20497, 44367)]