989457

素因数分解:

$3^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{127}}^1$

素因数の和:197

約数の個数: 24

約数和(自身を含む): 1575936

約数和(自身を除く): 586479

約数列:

[1, 3, 7, 21, 49, 53, 127, 147, 159, 371, 381, 889, 1113, 2597, 2667, 6223, 6731, 7791, 18669, 20193, 47117, 141351, 329819, 989457]

約数ペア:

[(1, 989457), (3, 329819), (7, 141351), (21, 47117), (49, 20193), (53, 18669), (127, 7791), (147, 6731), (159, 6223), (371, 2667), (381, 2597), (889, 1113)]