21787444854

素因数分解:

$2^1\times 3^3\times 7^1\times {\mathrm{41}}^1\times {\mathrm{1405823}}^1$

素因数の和:1405882

約数の個数: 64

約数和(自身を含む): 56682823680

約数和(自身を除く): 34895378826

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 41, 42, 54, 63, 82, 123, 126, 189, 246, 287, 369, 378, 574, 738, 861, 1107, 1722, 2214, 2583, 5166, 7749, 15498, 1405823, 2811646, 4217469, 8434938, 9840761, 12652407, 19681522, 25304814, 29522283, 37957221, 57638743, 59044566, 75914442, 88566849, 115277486, 172916229, 177133698, 265700547, 345832458, 403471201, 518748687, 531401094, 806942402, 1037497374, 1210413603, 1556246061, 2420827206, 3112492122, 3631240809, 7262481618, 10893722427, 21787444854]

約数ペア:

[(1, 21787444854), (2, 10893722427), (3, 7262481618), (6, 3631240809), (7, 3112492122), (9, 2420827206), (14, 1556246061), (18, 1210413603), (21, 1037497374), (27, 806942402), (41, 531401094), (42, 518748687), (54, 403471201), (63, 345832458), (82, 265700547), (123, 177133698), (126, 172916229), (189, 115277486), (246, 88566849), (287, 75914442), (369, 59044566), (378, 57638743), (574, 37957221), (738, 29522283), (861, 25304814), (1107, 19681522), (1722, 12652407), (2214, 9840761), (2583, 8434938), (5166, 4217469), (7749, 2811646), (15498, 1405823)]