21485394

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{4159}}^1$

素因数の和:4215

約数の個数: 48

約数和(自身を含む): 54512640

約数和(自身を除く): 33027246

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 41, 42, 63, 82, 123, 126, 246, 287, 369, 574, 738, 861, 1722, 2583, 4159, 5166, 8318, 12477, 24954, 29113, 37431, 58226, 74862, 87339, 170519, 174678, 262017, 341038, 511557, 524034, 1023114, 1193633, 1534671, 2387266, 3069342, 3580899, 7161798, 10742697, 21485394]

約数ペア:

[(1, 21485394), (2, 10742697), (3, 7161798), (6, 3580899), (7, 3069342), (9, 2387266), (14, 1534671), (18, 1193633), (21, 1023114), (41, 524034), (42, 511557), (63, 341038), (82, 262017), (123, 174678), (126, 170519), (246, 87339), (287, 74862), (369, 58226), (574, 37431), (738, 29113), (861, 24954), (1722, 12477), (2583, 8318), (4159, 5166)]