20888965461

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{643}}^1\times {\mathrm{937}}^1$

素因数の和:1730

約数の個数: 64

約数和(自身を含む): 34639904768

約数和(自身を除く): 13750939307

約数列:

[1, 3, 7, 13, 21, 39, 91, 127, 273, 381, 643, 889, 937, 1651, 1929, 2667, 2811, 4501, 4953, 6559, 8359, 11557, 12181, 13503, 19677, 25077, 34671, 36543, 58513, 81661, 85267, 118999, 175539, 244983, 255801, 356997, 571627, 602491, 832993, 1061593, 1546987, 1714881, 1807473, 2498979, 3184779, 4217437, 4640961, 7431151, 7832383, 10828909, 12652311, 22293453, 23497149, 32486727, 54826681, 76516357, 164480043, 229549071, 535614499, 994712641, 1606843497, 2984137923, 6962988487, 20888965461]

約数ペア:

[(1, 20888965461), (3, 6962988487), (7, 2984137923), (13, 1606843497), (21, 994712641), (39, 535614499), (91, 229549071), (127, 164480043), (273, 76516357), (381, 54826681), (643, 32486727), (889, 23497149), (937, 22293453), (1651, 12652311), (1929, 10828909), (2667, 7832383), (2811, 7431151), (4501, 4640961), (4953, 4217437), (6559, 3184779), (8359, 2498979), (11557, 1807473), (12181, 1714881), (13503, 1546987), (19677, 1061593), (25077, 832993), (34671, 602491), (36543, 571627), (58513, 356997), (81661, 255801), (85267, 244983), (118999, 175539)]