20891754

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{127}}^1$

素因数の和:204

約数の個数: 96

約数和(自身を含む): 53114880

約数和(自身を除く): 32223126

約数列:

[1, 2, 3, 6, 9, 13, 18, 19, 26, 37, 38, 39, 57, 74, 78, 111, 114, 117, 127, 171, 222, 234, 247, 254, 333, 342, 381, 481, 494, 666, 703, 741, 762, 962, 1143, 1406, 1443, 1482, 1651, 2109, 2223, 2286, 2413, 2886, 3302, 4218, 4329, 4446, 4699, 4826, 4953, 6327, 7239, 8658, 9139, 9398, 9906, 12654, 14097, 14478, 14859, 18278, 21717, 27417, 28194, 29718, 31369, 42291, 43434, 54834, 61087, 62738, 82251, 84582, 89281, 94107, 122174, 164502, 178562, 183261, 188214, 267843, 282321, 366522, 535686, 549783, 564642, 803529, 1099566, 1160653, 1607058, 2321306, 3481959, 6963918, 10445877, 20891754]

約数ペア:

[(1, 20891754), (2, 10445877), (3, 6963918), (6, 3481959), (9, 2321306), (13, 1607058), (18, 1160653), (19, 1099566), (26, 803529), (37, 564642), (38, 549783), (39, 535686), (57, 366522), (74, 282321), (78, 267843), (111, 188214), (114, 183261), (117, 178562), (127, 164502), (171, 122174), (222, 94107), (234, 89281), (247, 84582), (254, 82251), (333, 62738), (342, 61087), (381, 54834), (481, 43434), (494, 42291), (666, 31369), (703, 29718), (741, 28194), (762, 27417), (962, 21717), (1143, 18278), (1406, 14859), (1443, 14478), (1482, 14097), (1651, 12654), (2109, 9906), (2223, 9398), (2286, 9139), (2413, 8658), (2886, 7239), (3302, 6327), (4218, 4953), (4329, 4826), (4446, 4699)]