21381824

素因数分解:

$2^6\times {\mathrm{79}}^1\times {\mathrm{4229}}^1$

素因数の和:4320

約数の個数: 28

約数和(自身を含む): 42976800

約数和(自身を除く): 21594976

約数列:

[1, 2, 4, 8, 16, 32, 64, 79, 158, 316, 632, 1264, 2528, 4229, 5056, 8458, 16916, 33832, 67664, 135328, 270656, 334091, 668182, 1336364, 2672728, 5345456, 10690912, 21381824]

約数ペア:

[(1, 21381824), (2, 10690912), (4, 5345456), (8, 2672728), (16, 1336364), (32, 668182), (64, 334091), (79, 270656), (158, 135328), (316, 67664), (632, 33832), (1264, 16916), (2528, 8458), (4229, 5056)]