21768435

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{293}}^1$

素因数の和:444

約数の個数: 48

約数和(自身を含む): 41094144

約数和(自身を除く): 19325709

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 127, 195, 293, 381, 585, 635, 879, 1143, 1465, 1651, 1905, 2637, 3809, 4395, 4953, 5715, 8255, 11427, 13185, 14859, 19045, 24765, 34281, 37211, 57135, 74295, 111633, 171405, 186055, 334899, 483743, 558165, 1451229, 1674495, 2418715, 4353687, 7256145, 21768435]

約数ペア:

[(1, 21768435), (3, 7256145), (5, 4353687), (9, 2418715), (13, 1674495), (15, 1451229), (39, 558165), (45, 483743), (65, 334899), (117, 186055), (127, 171405), (195, 111633), (293, 74295), (381, 57135), (585, 37211), (635, 34281), (879, 24765), (1143, 19045), (1465, 14859), (1651, 13185), (1905, 11427), (2637, 8255), (3809, 5715), (4395, 4953)]