21156864

素因数分解:

$2^{10}\times 3^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:191

約数の個数: 88

約数和(自身を含む): 57774528

約数和(自身を除く): 36617664

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 71, 96, 97, 128, 142, 192, 194, 213, 256, 284, 291, 384, 388, 426, 512, 568, 582, 768, 776, 852, 1024, 1136, 1164, 1536, 1552, 1704, 2272, 2328, 3072, 3104, 3408, 4544, 4656, 6208, 6816, 6887, 9088, 9312, 12416, 13632, 13774, 18176, 18624, 20661, 24832, 27264, 27548, 36352, 37248, 41322, 49664, 54528, 55096, 72704, 74496, 82644, 99328, 109056, 110192, 148992, 165288, 218112, 220384, 297984, 330576, 440768, 661152, 881536, 1322304, 1763072, 2644608, 3526144, 5289216, 7052288, 10578432, 21156864]

約数ペア:

[(1, 21156864), (2, 10578432), (3, 7052288), (4, 5289216), (6, 3526144), (8, 2644608), (12, 1763072), (16, 1322304), (24, 881536), (32, 661152), (48, 440768), (64, 330576), (71, 297984), (96, 220384), (97, 218112), (128, 165288), (142, 148992), (192, 110192), (194, 109056), (213, 99328), (256, 82644), (284, 74496), (291, 72704), (384, 55096), (388, 54528), (426, 49664), (512, 41322), (568, 37248), (582, 36352), (768, 27548), (776, 27264), (852, 24832), (1024, 20661), (1136, 18624), (1164, 18176), (1536, 13774), (1552, 13632), (1704, 12416), (2272, 9312), (2328, 9088), (3072, 6887), (3104, 6816), (3408, 6208), (4544, 4656)]