21234556

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{349}}^1$

素因数の和:454

約数の個数: 48

約数和(自身を含む): 44452800

約数和(自身を除く): 23218244

約数列:

[1, 2, 4, 7, 14, 28, 41, 53, 82, 106, 164, 212, 287, 349, 371, 574, 698, 742, 1148, 1396, 1484, 2173, 2443, 4346, 4886, 8692, 9772, 14309, 15211, 18497, 28618, 30422, 36994, 57236, 60844, 73988, 100163, 129479, 200326, 258958, 400652, 517916, 758377, 1516754, 3033508, 5308639, 10617278, 21234556]

約数ペア:

[(1, 21234556), (2, 10617278), (4, 5308639), (7, 3033508), (14, 1516754), (28, 758377), (41, 517916), (53, 400652), (82, 258958), (106, 200326), (164, 129479), (212, 100163), (287, 73988), (349, 60844), (371, 57236), (574, 36994), (698, 30422), (742, 28618), (1148, 18497), (1396, 15211), (1484, 14309), (2173, 9772), (2443, 8692), (4346, 4886)]