21646768

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{9461}}^1$

素因数の和:9493

約数の個数: 40

約数和(自身を含む): 49278096

約数和(自身を除く): 27631328

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 176, 208, 286, 572, 1144, 2288, 9461, 18922, 37844, 75688, 104071, 122993, 151376, 208142, 245986, 416284, 491972, 832568, 983944, 1352923, 1665136, 1967888, 2705846, 5411692, 10823384, 21646768]

約数ペア:

[(1, 21646768), (2, 10823384), (4, 5411692), (8, 2705846), (11, 1967888), (13, 1665136), (16, 1352923), (22, 983944), (26, 832568), (44, 491972), (52, 416284), (88, 245986), (104, 208142), (143, 151376), (176, 122993), (208, 104071), (286, 75688), (572, 37844), (1144, 18922), (2288, 9461)]