21120289918

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{277}}^1\times {\mathrm{5303}}^1$

素因数の和:5681

約数の個数: 64

約数和(自身を含む): 39634882560

約数和(自身を除く): 18514592642

約数列:

[1, 2, 7, 13, 14, 26, 79, 91, 158, 182, 277, 553, 554, 1027, 1106, 1939, 2054, 3601, 3878, 5303, 7189, 7202, 10606, 14378, 21883, 25207, 37121, 43766, 50414, 68939, 74242, 137878, 153181, 284479, 306362, 418937, 482573, 568958, 837874, 965146, 1468931, 1991353, 2932559, 2937862, 3982706, 5446181, 5865118, 10282517, 10892362, 19096103, 20565034, 38123267, 38192206, 76246534, 116045549, 133672721, 232091098, 267345442, 812318843, 1508592137, 1624637686, 3017184274, 10560144959, 21120289918]

約数ペア:

[(1, 21120289918), (2, 10560144959), (7, 3017184274), (13, 1624637686), (14, 1508592137), (26, 812318843), (79, 267345442), (91, 232091098), (158, 133672721), (182, 116045549), (277, 76246534), (553, 38192206), (554, 38123267), (1027, 20565034), (1106, 19096103), (1939, 10892362), (2054, 10282517), (3601, 5865118), (3878, 5446181), (5303, 3982706), (7189, 2937862), (7202, 2932559), (10606, 1991353), (14378, 1468931), (21883, 965146), (25207, 837874), (37121, 568958), (43766, 482573), (50414, 418937), (68939, 306362), (74242, 284479), (137878, 153181)]