212220138

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{15727}}^1$

素因数の和:15918

約数の個数: 32

約数和(自身を含む): 459760896

約数和(自身を除く): 247540758

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 173, 346, 519, 1038, 2249, 4498, 6747, 13494, 15727, 31454, 47181, 94362, 204451, 408902, 613353, 1226706, 2720771, 5441542, 8162313, 16324626, 35370023, 70740046, 106110069, 212220138]

約数ペア:

[(1, 212220138), (2, 106110069), (3, 70740046), (6, 35370023), (13, 16324626), (26, 8162313), (39, 5441542), (78, 2720771), (173, 1226706), (346, 613353), (519, 408902), (1038, 204451), (2249, 94362), (4498, 47181), (6747, 31454), (13494, 15727)]