20452509

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{2683}}^1$

素因数の和:2718

約数の個数: 36

約数和(自身を含む): 37125088

約数和(自身を除く): 16672579

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 121, 231, 363, 693, 847, 1089, 2541, 2683, 7623, 8049, 18781, 24147, 29513, 56343, 88539, 169029, 206591, 265617, 324643, 619773, 973929, 1859319, 2272501, 2921787, 6817503, 20452509]

約数ペア:

[(1, 20452509), (3, 6817503), (7, 2921787), (9, 2272501), (11, 1859319), (21, 973929), (33, 619773), (63, 324643), (77, 265617), (99, 206591), (121, 169029), (231, 88539), (363, 56343), (693, 29513), (847, 24147), (1089, 18781), (2541, 8049), (2683, 7623)]