31380237

素因数分解:

$3^3\times 7^2\times {\mathrm{23719}}^1$

素因数の和:23742

約数の個数: 24

約数和(自身を含む): 54081600

約数和(自身を除く): 22701363

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 23719, 71157, 166033, 213471, 498099, 640413, 1162231, 1494297, 3486693, 4482891, 10460079, 31380237]

約数ペア:

[(1, 31380237), (3, 10460079), (7, 4482891), (9, 3486693), (21, 1494297), (27, 1162231), (49, 640413), (63, 498099), (147, 213471), (189, 166033), (441, 71157), (1323, 23719)]