21727275

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{17041}}^1$

素因数の和:17071

約数の個数: 24

約数和(自身を含む): 38037744

約数和(自身を除く): 16310469

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 17041, 51123, 85205, 255615, 289697, 426025, 869091, 1278075, 1448485, 4345455, 7242425, 21727275]

約数ペア:

[(1, 21727275), (3, 7242425), (5, 4345455), (15, 1448485), (17, 1278075), (25, 869091), (51, 426025), (75, 289697), (85, 255615), (255, 85205), (425, 51123), (1275, 17041)]