20281144

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{191}}^1\times {\mathrm{1021}}^1$

素因数の和:1231

約数の個数: 32

約数和(自身を含む): 41207040

約数和(自身を除く): 20925896

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 191, 382, 764, 1021, 1528, 2042, 2483, 4084, 4966, 8168, 9932, 13273, 19864, 26546, 53092, 106184, 195011, 390022, 780044, 1560088, 2535143, 5070286, 10140572, 20281144]

約数ペア:

[(1, 20281144), (2, 10140572), (4, 5070286), (8, 2535143), (13, 1560088), (26, 780044), (52, 390022), (104, 195011), (191, 106184), (382, 53092), (764, 26546), (1021, 19864), (1528, 13273), (2042, 9932), (2483, 8168), (4084, 4966)]