21444405

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{431}}^1$

素因数の和:577

約数の個数: 32

約数和(自身を含む): 35831808

約数和(自身を除く): 14387403

約数列:

[1, 3, 5, 15, 31, 93, 107, 155, 321, 431, 465, 535, 1293, 1605, 2155, 3317, 6465, 9951, 13361, 16585, 40083, 46117, 49755, 66805, 138351, 200415, 230585, 691755, 1429627, 4288881, 7148135, 21444405]

約数ペア:

[(1, 21444405), (3, 7148135), (5, 4288881), (15, 1429627), (31, 691755), (93, 230585), (107, 200415), (155, 138351), (321, 66805), (431, 49755), (465, 46117), (535, 40083), (1293, 16585), (1605, 13361), (2155, 9951), (3317, 6465)]