21492730

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{479}}^1\times {\mathrm{641}}^1$

素因数の和:1134

約数の個数: 32

約数和(自身を含む): 44375040

約数和(自身を除く): 22882310

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 479, 641, 958, 1282, 2395, 3205, 3353, 4487, 4790, 6410, 6706, 8974, 16765, 22435, 33530, 44870, 307039, 614078, 1535195, 2149273, 3070390, 4298546, 10746365, 21492730]

約数ペア:

[(1, 21492730), (2, 10746365), (5, 4298546), (7, 3070390), (10, 2149273), (14, 1535195), (35, 614078), (70, 307039), (479, 44870), (641, 33530), (958, 22435), (1282, 16765), (2395, 8974), (3205, 6706), (3353, 6410), (4487, 4790)]