81328121567

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{409}}^1\times {\mathrm{21701}}^1$

素因数の和:22152

約数の個数: 48

約数和(自身を含む): 109549959840

約数和(自身を除く): 28221838273

約数列:

[1, 7, 11, 17, 49, 77, 119, 187, 409, 539, 833, 1309, 2863, 4499, 6953, 9163, 20041, 21701, 31493, 48671, 76483, 151907, 220451, 238711, 340697, 368917, 535381, 1063349, 1670977, 2582419, 3747667, 4058087, 8875709, 11696839, 18076933, 28406609, 62129963, 97632799, 150887053, 198846263, 434909741, 683429593, 1056209371, 1659757583, 4784007151, 7393465597, 11618303081, 81328121567]

約数ペア:

[(1, 81328121567), (7, 11618303081), (11, 7393465597), (17, 4784007151), (49, 1659757583), (77, 1056209371), (119, 683429593), (187, 434909741), (409, 198846263), (539, 150887053), (833, 97632799), (1309, 62129963), (2863, 28406609), (4499, 18076933), (6953, 11696839), (9163, 8875709), (20041, 4058087), (21701, 3747667), (31493, 2582419), (48671, 1670977), (76483, 1063349), (151907, 535381), (220451, 368917), (238711, 340697)]