20678886

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{251}}^1$

素因数の和:481

約数の個数: 48

約数和(自身を含む): 47174400

約数和(自身を除く): 26495514

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 199, 207, 251, 398, 414, 502, 597, 753, 1194, 1506, 1791, 2259, 3582, 4518, 4577, 5773, 9154, 11546, 13731, 17319, 27462, 34638, 41193, 49949, 51957, 82386, 99898, 103914, 149847, 299694, 449541, 899082, 1148827, 2297654, 3446481, 6892962, 10339443, 20678886]

約数ペア:

[(1, 20678886), (2, 10339443), (3, 6892962), (6, 3446481), (9, 2297654), (18, 1148827), (23, 899082), (46, 449541), (69, 299694), (138, 149847), (199, 103914), (207, 99898), (251, 82386), (398, 51957), (414, 49949), (502, 41193), (597, 34638), (753, 27462), (1194, 17319), (1506, 13731), (1791, 11546), (2259, 9154), (3582, 5773), (4518, 4577)]