21149590

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{227}}^1$

素因数の和:274

約数の個数: 64

約数和(自身を含む): 48066048

約数和(自身を除く): 26916458

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 121, 154, 227, 242, 385, 454, 605, 770, 847, 1135, 1210, 1331, 1589, 1694, 2270, 2497, 2662, 3178, 4235, 4994, 6655, 7945, 8470, 9317, 12485, 13310, 15890, 17479, 18634, 24970, 27467, 34958, 46585, 54934, 87395, 93170, 137335, 174790, 192269, 274670, 302137, 384538, 604274, 961345, 1510685, 1922690, 2114959, 3021370, 4229918, 10574795, 21149590]

約数ペア:

[(1, 21149590), (2, 10574795), (5, 4229918), (7, 3021370), (10, 2114959), (11, 1922690), (14, 1510685), (22, 961345), (35, 604274), (55, 384538), (70, 302137), (77, 274670), (110, 192269), (121, 174790), (154, 137335), (227, 93170), (242, 87395), (385, 54934), (454, 46585), (605, 34958), (770, 27467), (847, 24970), (1135, 18634), (1210, 17479), (1331, 15890), (1589, 13310), (1694, 12485), (2270, 9317), (2497, 8470), (2662, 7945), (3178, 6655), (4235, 4994)]