2155923

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1$

素因数の和:105

約数の個数: 64

約数和(自身を含む): 4285440

約数和(自身を除く): 2129517

約数列:

[1, 3, 7, 9, 11, 17, 21, 27, 33, 51, 61, 63, 77, 99, 119, 153, 183, 187, 189, 231, 297, 357, 427, 459, 549, 561, 671, 693, 1037, 1071, 1281, 1309, 1647, 1683, 2013, 2079, 3111, 3213, 3843, 3927, 4697, 5049, 6039, 7259, 9333, 11407, 11529, 11781, 14091, 18117, 21777, 27999, 34221, 35343, 42273, 65331, 79849, 102663, 126819, 195993, 239547, 307989, 718641, 2155923]

約数ペア:

[(1, 2155923), (3, 718641), (7, 307989), (9, 239547), (11, 195993), (17, 126819), (21, 102663), (27, 79849), (33, 65331), (51, 42273), (61, 35343), (63, 34221), (77, 27999), (99, 21777), (119, 18117), (153, 14091), (183, 11781), (187, 11529), (189, 11407), (231, 9333), (297, 7259), (357, 6039), (427, 5049), (459, 4697), (549, 3927), (561, 3843), (671, 3213), (693, 3111), (1037, 2079), (1071, 2013), (1281, 1683), (1309, 1647)]