20997804944

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{1091}}^1\times {\mathrm{29339}}^1$

素因数の和:30479

約数の個数: 40

約数和(自身を含む): 41715142560

約数和(自身を除く): 20717337616

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 1091, 2182, 4364, 8728, 17456, 29339, 44731, 58678, 89462, 117356, 178924, 234712, 357848, 469424, 715696, 1202899, 2405798, 4811596, 9623192, 19246384, 32008849, 64017698, 128035396, 256070792, 512141584, 1312362809, 2624725618, 5249451236, 10498902472, 20997804944]

約数ペア:

[(1, 20997804944), (2, 10498902472), (4, 5249451236), (8, 2624725618), (16, 1312362809), (41, 512141584), (82, 256070792), (164, 128035396), (328, 64017698), (656, 32008849), (1091, 19246384), (2182, 9623192), (4364, 4811596), (8728, 2405798), (17456, 1202899), (29339, 715696), (44731, 469424), (58678, 357848), (89462, 234712), (117356, 178924)]