221697

素因数分解:

$3^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1$

素因数の和:59

約数の個数: 40

約数和(自身を含む): 418176

約数和(自身を除く): 196479

約数列:

[1, 3, 7, 9, 17, 21, 23, 27, 51, 63, 69, 81, 119, 153, 161, 189, 207, 357, 391, 459, 483, 567, 621, 1071, 1173, 1377, 1449, 1863, 2737, 3213, 3519, 4347, 8211, 9639, 10557, 13041, 24633, 31671, 73899, 221697]

約数ペア:

[(1, 221697), (3, 73899), (7, 31671), (9, 24633), (17, 13041), (21, 10557), (23, 9639), (27, 8211), (51, 4347), (63, 3519), (69, 3213), (81, 2737), (119, 1863), (153, 1449), (161, 1377), (189, 1173), (207, 1071), (357, 621), (391, 567), (459, 483)]