18667376

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{12821}}^1$

素因数の和:12849

約数の個数: 40

約数和(自身を含む): 44517984

約数和(自身を除く): 25850608

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 52, 56, 91, 104, 112, 182, 208, 364, 728, 1456, 12821, 25642, 51284, 89747, 102568, 166673, 179494, 205136, 333346, 358988, 666692, 717976, 1166711, 1333384, 1435952, 2333422, 2666768, 4666844, 9333688, 18667376]

約数ペア:

[(1, 18667376), (2, 9333688), (4, 4666844), (7, 2666768), (8, 2333422), (13, 1435952), (14, 1333384), (16, 1166711), (26, 717976), (28, 666692), (52, 358988), (56, 333346), (91, 205136), (104, 179494), (112, 166673), (182, 102568), (208, 89747), (364, 51284), (728, 25642), (1456, 12821)]