20786584

素因数分解:

$2^3\times 7^2\times {\mathrm{13}}^1\times {\mathrm{4079}}^1$

素因数の和:4112

約数の個数: 48

約数和(自身を含む): 48837600

約数和(自身を除く): 28051016

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 49, 52, 56, 91, 98, 104, 182, 196, 364, 392, 637, 728, 1274, 2548, 4079, 5096, 8158, 16316, 28553, 32632, 53027, 57106, 106054, 114212, 199871, 212108, 228424, 371189, 399742, 424216, 742378, 799484, 1484756, 1598968, 2598323, 2969512, 5196646, 10393292, 20786584]

約数ペア:

[(1, 20786584), (2, 10393292), (4, 5196646), (7, 2969512), (8, 2598323), (13, 1598968), (14, 1484756), (26, 799484), (28, 742378), (49, 424216), (52, 399742), (56, 371189), (91, 228424), (98, 212108), (104, 199871), (182, 114212), (196, 106054), (364, 57106), (392, 53027), (637, 32632), (728, 28553), (1274, 16316), (2548, 8158), (4079, 5096)]