21423825

素因数分解:

$3^3\times 5^2\times {\mathrm{17}}^1\times {\mathrm{1867}}^1$

素因数の和:1903

約数の個数: 48

約数和(自身を含む): 41693760

約数和(自身を除く): 20269935

約数列:

[1, 3, 5, 9, 15, 17, 25, 27, 45, 51, 75, 85, 135, 153, 225, 255, 425, 459, 675, 765, 1275, 1867, 2295, 3825, 5601, 9335, 11475, 16803, 28005, 31739, 46675, 50409, 84015, 95217, 140025, 158695, 252045, 285651, 420075, 476085, 793475, 856953, 1260225, 1428255, 2380425, 4284765, 7141275, 21423825]

約数ペア:

[(1, 21423825), (3, 7141275), (5, 4284765), (9, 2380425), (15, 1428255), (17, 1260225), (25, 856953), (27, 793475), (45, 476085), (51, 420075), (75, 285651), (85, 252045), (135, 158695), (153, 140025), (225, 95217), (255, 84015), (425, 50409), (459, 46675), (675, 31739), (765, 28005), (1275, 16803), (1867, 11475), (2295, 9335), (3825, 5601)]