21981025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{1193}}^1$

素因数の和:1281

約数の個数: 24

約数和(自身を含む): 30203424

約数和(自身を除く): 8222399

約数列:

[1, 5, 11, 25, 55, 67, 275, 335, 737, 1193, 1675, 3685, 5965, 13123, 18425, 29825, 65615, 79931, 328075, 399655, 879241, 1998275, 4396205, 21981025]

約数ペア:

[(1, 21981025), (5, 4396205), (11, 1998275), (25, 879241), (55, 399655), (67, 328075), (275, 79931), (335, 65615), (737, 29825), (1193, 18425), (1675, 13123), (3685, 5965)]