21133770

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{641}}^1$

素因数の和:815

約数の個数: 64

約数和(自身を含む): 58427136

約数和(自身を除く): 37293366

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 70, 105, 157, 210, 314, 471, 641, 785, 942, 1099, 1282, 1570, 1923, 2198, 2355, 3205, 3297, 3846, 4487, 4710, 5495, 6410, 6594, 8974, 9615, 10990, 13461, 16485, 19230, 22435, 26922, 32970, 44870, 67305, 100637, 134610, 201274, 301911, 503185, 603822, 704459, 1006370, 1408918, 1509555, 2113377, 3019110, 3522295, 4226754, 7044590, 10566885, 21133770]

約数ペア:

[(1, 21133770), (2, 10566885), (3, 7044590), (5, 4226754), (6, 3522295), (7, 3019110), (10, 2113377), (14, 1509555), (15, 1408918), (21, 1006370), (30, 704459), (35, 603822), (42, 503185), (70, 301911), (105, 201274), (157, 134610), (210, 100637), (314, 67305), (471, 44870), (641, 32970), (785, 26922), (942, 22435), (1099, 19230), (1282, 16485), (1570, 13461), (1923, 10990), (2198, 9615), (2355, 8974), (3205, 6594), (3297, 6410), (3846, 5495), (4487, 4710)]