21000663424

素因数分解:

$2^7\times {\mathrm{13}}^1\times {\mathrm{1277}}^1\times {\mathrm{9883}}^1$

素因数の和:11187

約数の個数: 64

約数和(自身を含む): 45095354640

約数和(自身を除く): 24094691216

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 128, 208, 416, 832, 1277, 1664, 2554, 5108, 9883, 10216, 16601, 19766, 20432, 33202, 39532, 40864, 66404, 79064, 81728, 128479, 132808, 158128, 163456, 256958, 265616, 316256, 513916, 531232, 632512, 1027832, 1062464, 1265024, 2055664, 2124928, 4111328, 8222656, 12620591, 16445312, 25241182, 50482364, 100964728, 164067683, 201929456, 328135366, 403858912, 656270732, 807717824, 1312541464, 1615435648, 2625082928, 5250165856, 10500331712, 21000663424]

約数ペア:

[(1, 21000663424), (2, 10500331712), (4, 5250165856), (8, 2625082928), (13, 1615435648), (16, 1312541464), (26, 807717824), (32, 656270732), (52, 403858912), (64, 328135366), (104, 201929456), (128, 164067683), (208, 100964728), (416, 50482364), (832, 25241182), (1277, 16445312), (1664, 12620591), (2554, 8222656), (5108, 4111328), (9883, 2124928), (10216, 2055664), (16601, 1265024), (19766, 1062464), (20432, 1027832), (33202, 632512), (39532, 531232), (40864, 513916), (66404, 316256), (79064, 265616), (81728, 256958), (128479, 163456), (132808, 158128)]