21395460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{356591}}^1$

素因数の和:356603

約数の個数: 24

約数和(自身を含む): 59907456

約数和(自身を除く): 38511996

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 356591, 713182, 1069773, 1426364, 1782955, 2139546, 3565910, 4279092, 5348865, 7131820, 10697730, 21395460]

約数ペア:

[(1, 21395460), (2, 10697730), (3, 7131820), (4, 5348865), (5, 4279092), (6, 3565910), (10, 2139546), (12, 1782955), (15, 1426364), (20, 1069773), (30, 713182), (60, 356591)]