20435548

素因数分解:

$2^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{2543}}^1$

素因数の和:2602

約数の個数: 36

約数和(自身を含む): 42632352

約数和(自身を除く): 22196804

約数列:

[1, 2, 4, 7, 14, 28, 41, 49, 82, 98, 164, 196, 287, 574, 1148, 2009, 2543, 4018, 5086, 8036, 10172, 17801, 35602, 71204, 104263, 124607, 208526, 249214, 417052, 498428, 729841, 1459682, 2919364, 5108887, 10217774, 20435548]

約数ペア:

[(1, 20435548), (2, 10217774), (4, 5108887), (7, 2919364), (14, 1459682), (28, 729841), (41, 498428), (49, 417052), (82, 249214), (98, 208526), (164, 124607), (196, 104263), (287, 71204), (574, 35602), (1148, 17801), (2009, 10172), (2543, 8036), (4018, 5086)]