21426075

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^2\times {\mathrm{787}}^1$

素因数の和:825

約数の個数: 54

約数和(自身を含む): 42236012

約数和(自身を除く): 20809937

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 121, 165, 225, 275, 363, 495, 605, 787, 825, 1089, 1815, 2361, 2475, 3025, 3935, 5445, 7083, 8657, 9075, 11805, 19675, 25971, 27225, 35415, 43285, 59025, 77913, 95227, 129855, 177075, 216425, 285681, 389565, 476135, 649275, 857043, 1428405, 1947825, 2380675, 4285215, 7142025, 21426075]

約数ペア:

[(1, 21426075), (3, 7142025), (5, 4285215), (9, 2380675), (11, 1947825), (15, 1428405), (25, 857043), (33, 649275), (45, 476135), (55, 389565), (75, 285681), (99, 216425), (121, 177075), (165, 129855), (225, 95227), (275, 77913), (363, 59025), (495, 43285), (605, 35415), (787, 27225), (825, 25971), (1089, 19675), (1815, 11805), (2361, 9075), (2475, 8657), (3025, 7083), (3935, 5445)]