21377488

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{5281}}^1$

素因数の和:5323

約数の個数: 40

約数和(自身を含む): 47157696

約数和(自身を除く): 25780208

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 44, 46, 88, 92, 176, 184, 253, 368, 506, 1012, 2024, 4048, 5281, 10562, 21124, 42248, 58091, 84496, 116182, 121463, 232364, 242926, 464728, 485852, 929456, 971704, 1336093, 1943408, 2672186, 5344372, 10688744, 21377488]

約数ペア:

[(1, 21377488), (2, 10688744), (4, 5344372), (8, 2672186), (11, 1943408), (16, 1336093), (22, 971704), (23, 929456), (44, 485852), (46, 464728), (88, 242926), (92, 232364), (176, 121463), (184, 116182), (253, 84496), (368, 58091), (506, 42248), (1012, 21124), (2024, 10562), (4048, 5281)]