21351736

素因数分解:

$2^3\times 7^1\times {\mathrm{43}}^1\times {\mathrm{8867}}^1$

素因数の和:8923

約数の個数: 32

約数和(自身を含む): 46823040

約数和(自身を除く): 25471304

約数列:

[1, 2, 4, 7, 8, 14, 28, 43, 56, 86, 172, 301, 344, 602, 1204, 2408, 8867, 17734, 35468, 62069, 70936, 124138, 248276, 381281, 496552, 762562, 1525124, 2668967, 3050248, 5337934, 10675868, 21351736]

約数ペア:

[(1, 21351736), (2, 10675868), (4, 5337934), (7, 3050248), (8, 2668967), (14, 1525124), (28, 762562), (43, 496552), (56, 381281), (86, 248276), (172, 124138), (301, 70936), (344, 62069), (602, 35468), (1204, 17734), (2408, 8867)]