20318584

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17761}}^1$

素因数の和:17791

約数の個数: 32

約数和(自身を含む): 44760240

約数和(自身を除く): 24441656

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 17761, 35522, 71044, 142088, 195371, 230893, 390742, 461786, 781484, 923572, 1562968, 1847144, 2539823, 5079646, 10159292, 20318584]

約数ペア:

[(1, 20318584), (2, 10159292), (4, 5079646), (8, 2539823), (11, 1847144), (13, 1562968), (22, 923572), (26, 781484), (44, 461786), (52, 390742), (88, 230893), (104, 195371), (143, 142088), (286, 71044), (572, 35522), (1144, 17761)]