20213784

素因数分解:

$2^3\times 3^2\times {\mathrm{43}}^1\times {\mathrm{6529}}^1$

素因数の和:6584

約数の個数: 48

約数和(自身を含む): 56027400

約数和(自身を除く): 35813616

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 43, 72, 86, 129, 172, 258, 344, 387, 516, 774, 1032, 1548, 3096, 6529, 13058, 19587, 26116, 39174, 52232, 58761, 78348, 117522, 156696, 235044, 280747, 470088, 561494, 842241, 1122988, 1684482, 2245976, 2526723, 3368964, 5053446, 6737928, 10106892, 20213784]

約数ペア:

[(1, 20213784), (2, 10106892), (3, 6737928), (4, 5053446), (6, 3368964), (8, 2526723), (9, 2245976), (12, 1684482), (18, 1122988), (24, 842241), (36, 561494), (43, 470088), (72, 280747), (86, 235044), (129, 156696), (172, 117522), (258, 78348), (344, 58761), (387, 52232), (516, 39174), (774, 26116), (1032, 19587), (1548, 13058), (3096, 6529)]