31172001

素因数分解:

$3^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:389

約数の個数: 32

約数和(自身を含む): 48921600

約数和(自身を除く): 17749599

約数列:

[1, 3, 7, 21, 59, 139, 177, 181, 413, 417, 543, 973, 1239, 1267, 2919, 3801, 8201, 10679, 24603, 25159, 32037, 57407, 74753, 75477, 172221, 176113, 224259, 528339, 1484381, 4453143, 10390667, 31172001]

約数ペア:

[(1, 31172001), (3, 10390667), (7, 4453143), (21, 1484381), (59, 528339), (139, 224259), (177, 176113), (181, 172221), (413, 75477), (417, 74753), (543, 57407), (973, 32037), (1239, 25159), (1267, 24603), (2919, 10679), (3801, 8201)]