21543246

素因数分解:

$2^1\times 3^4\times {\mathrm{71}}^1\times {\mathrm{1873}}^1$

素因数の和:1958

約数の個数: 40

約数和(自身を含む): 48978864

約数和(自身を除く): 27435618

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 71, 81, 142, 162, 213, 426, 639, 1278, 1873, 1917, 3746, 3834, 5619, 5751, 11238, 11502, 16857, 33714, 50571, 101142, 132983, 151713, 265966, 303426, 398949, 797898, 1196847, 2393694, 3590541, 7181082, 10771623, 21543246]

約数ペア:

[(1, 21543246), (2, 10771623), (3, 7181082), (6, 3590541), (9, 2393694), (18, 1196847), (27, 797898), (54, 398949), (71, 303426), (81, 265966), (142, 151713), (162, 132983), (213, 101142), (426, 50571), (639, 33714), (1278, 16857), (1873, 11502), (1917, 11238), (3746, 5751), (3834, 5619)]