21758224

素因数分解:

$2^4\times {\mathrm{1031}}^1\times {\mathrm{1319}}^1$

素因数の和:2358

約数の個数: 20

約数和(自身を含む): 42229440

約数和(自身を除く): 20471216

約数列:

[1, 2, 4, 8, 16, 1031, 1319, 2062, 2638, 4124, 5276, 8248, 10552, 16496, 21104, 1359889, 2719778, 5439556, 10879112, 21758224]

約数ペア:

[(1, 21758224), (2, 10879112), (4, 5439556), (8, 2719778), (16, 1359889), (1031, 21104), (1319, 16496), (2062, 10552), (2638, 8248), (4124, 5276)]