31388787

素因数分解:

$3^2\times {\mathrm{89}}^1\times {\mathrm{149}}^1\times {\mathrm{263}}^1$

素因数の和:507

約数の個数: 24

約数和(自身を含む): 46332000

約数和(自身を除く): 14943213

約数列:

[1, 3, 9, 89, 149, 263, 267, 447, 789, 801, 1341, 2367, 13261, 23407, 39187, 39783, 70221, 117561, 119349, 210663, 352683, 3487643, 10462929, 31388787]

約数ペア:

[(1, 31388787), (3, 10462929), (9, 3487643), (89, 352683), (149, 210663), (263, 119349), (267, 117561), (447, 70221), (789, 39783), (801, 39187), (1341, 23407), (2367, 13261)]