20189936

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{859}}^1$

素因数の和:993

約数の個数: 40

約数和(自身を含む): 42549360

約数和(自身を除く): 22359424

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 113, 208, 226, 452, 859, 904, 1469, 1718, 1808, 2938, 3436, 5876, 6872, 11167, 11752, 13744, 22334, 23504, 44668, 89336, 97067, 178672, 194134, 388268, 776536, 1261871, 1553072, 2523742, 5047484, 10094968, 20189936]

約数ペア:

[(1, 20189936), (2, 10094968), (4, 5047484), (8, 2523742), (13, 1553072), (16, 1261871), (26, 776536), (52, 388268), (104, 194134), (113, 178672), (208, 97067), (226, 89336), (452, 44668), (859, 23504), (904, 22334), (1469, 13744), (1718, 11752), (1808, 11167), (2938, 6872), (3436, 5876)]