21420928

素因数分解:

$2^7\times {\mathrm{37}}^1\times {\mathrm{4523}}^1$

素因数の和:4574

約数の個数: 32

約数和(自身を含む): 43837560

約数和(自身を除く): 22416632

約数列:

[1, 2, 4, 8, 16, 32, 37, 64, 74, 128, 148, 296, 592, 1184, 2368, 4523, 4736, 9046, 18092, 36184, 72368, 144736, 167351, 289472, 334702, 578944, 669404, 1338808, 2677616, 5355232, 10710464, 21420928]

約数ペア:

[(1, 21420928), (2, 10710464), (4, 5355232), (8, 2677616), (16, 1338808), (32, 669404), (37, 578944), (64, 334702), (74, 289472), (128, 167351), (148, 144736), (296, 72368), (592, 36184), (1184, 18092), (2368, 9046), (4523, 4736)]