21272244

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{1613}}^1$

素因数の和:1784

約数の個数: 48

約数和(自身を含む): 57122688

約数和(自身を除く): 35850444

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 157, 314, 471, 628, 942, 1099, 1613, 1884, 2198, 3226, 3297, 4396, 4839, 6452, 6594, 9678, 11291, 13188, 19356, 22582, 33873, 45164, 67746, 135492, 253241, 506482, 759723, 1012964, 1519446, 1772687, 3038892, 3545374, 5318061, 7090748, 10636122, 21272244]

約数ペア:

[(1, 21272244), (2, 10636122), (3, 7090748), (4, 5318061), (6, 3545374), (7, 3038892), (12, 1772687), (14, 1519446), (21, 1012964), (28, 759723), (42, 506482), (84, 253241), (157, 135492), (314, 67746), (471, 45164), (628, 33873), (942, 22582), (1099, 19356), (1613, 13188), (1884, 11291), (2198, 9678), (3226, 6594), (3297, 6452), (4396, 4839)]