21167125

素因数分解:

$5^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1423}}^1$

素因数の和:1462

約数の個数: 32

約数和(自身を含む): 31988736

約数和(自身を除く): 10821611

約数列:

[1, 5, 7, 17, 25, 35, 85, 119, 125, 175, 425, 595, 875, 1423, 2125, 2975, 7115, 9961, 14875, 24191, 35575, 49805, 120955, 169337, 177875, 249025, 604775, 846685, 1245125, 3023875, 4233425, 21167125]

約数ペア:

[(1, 21167125), (5, 4233425), (7, 3023875), (17, 1245125), (25, 846685), (35, 604775), (85, 249025), (119, 177875), (125, 169337), (175, 120955), (425, 49805), (595, 35575), (875, 24191), (1423, 14875), (2125, 9961), (2975, 7115)]