21805115008

素因数分解:

$2^7\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{527407}}^1$

素因数の和:527457

約数の個数: 64

約数和(自身を含む): 48416054400

約数和(自身を除く): 26610939392

約数列:

[1, 2, 4, 8, 16, 17, 19, 32, 34, 38, 64, 68, 76, 128, 136, 152, 272, 304, 323, 544, 608, 646, 1088, 1216, 1292, 2176, 2432, 2584, 5168, 10336, 20672, 41344, 527407, 1054814, 2109628, 4219256, 8438512, 8965919, 10020733, 16877024, 17931838, 20041466, 33754048, 35863676, 40082932, 67508096, 71727352, 80165864, 143454704, 160331728, 170352461, 286909408, 320663456, 340704922, 573818816, 641326912, 681409844, 1147637632, 1282653824, 1362819688, 2725639376, 5451278752, 10902557504, 21805115008]

約数ペア:

[(1, 21805115008), (2, 10902557504), (4, 5451278752), (8, 2725639376), (16, 1362819688), (17, 1282653824), (19, 1147637632), (32, 681409844), (34, 641326912), (38, 573818816), (64, 340704922), (68, 320663456), (76, 286909408), (128, 170352461), (136, 160331728), (152, 143454704), (272, 80165864), (304, 71727352), (323, 67508096), (544, 40082932), (608, 35863676), (646, 33754048), (1088, 20041466), (1216, 17931838), (1292, 16877024), (2176, 10020733), (2432, 8965919), (2584, 8438512), (5168, 4219256), (10336, 2109628), (20672, 1054814), (41344, 527407)]