21306071815

素因数分解:

$5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{127}}^1\times {\mathrm{90439}}^1$

素因数の和:90631

約数の個数: 32

約数和(自身を含む): 30005821440

約数和(自身を除く): 8699749625

約数列:

[1, 5, 7, 35, 53, 127, 265, 371, 635, 889, 1855, 4445, 6731, 33655, 47117, 90439, 235585, 452195, 633073, 3165365, 4793267, 11485753, 23966335, 33552869, 57428765, 80400271, 167764345, 402001355, 608744909, 3043724545, 4261214363, 21306071815]

約数ペア:

[(1, 21306071815), (5, 4261214363), (7, 3043724545), (35, 608744909), (53, 402001355), (127, 167764345), (265, 80400271), (371, 57428765), (635, 33552869), (889, 23966335), (1855, 11485753), (4445, 4793267), (6731, 3165365), (33655, 633073), (47117, 452195), (90439, 235585)]