21127150

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{359}}^1$

素因数の和:489

約数の個数: 48

約数和(自身を含む): 43390080

約数和(自身を除く): 22262930

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 107, 110, 214, 275, 359, 535, 550, 718, 1070, 1177, 1795, 2354, 2675, 3590, 3949, 5350, 5885, 7898, 8975, 11770, 17950, 19745, 29425, 38413, 39490, 58850, 76826, 98725, 192065, 197450, 384130, 422543, 845086, 960325, 1920650, 2112715, 4225430, 10563575, 21127150]

約数ペア:

[(1, 21127150), (2, 10563575), (5, 4225430), (10, 2112715), (11, 1920650), (22, 960325), (25, 845086), (50, 422543), (55, 384130), (107, 197450), (110, 192065), (214, 98725), (275, 76826), (359, 58850), (535, 39490), (550, 38413), (718, 29425), (1070, 19745), (1177, 17950), (1795, 11770), (2354, 8975), (2675, 7898), (3590, 5885), (3949, 5350)]