20404545

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{6701}}^1$

素因数の和:6745

約数の個数: 32

約数和(自身を含む): 38603520

約数和(自身を除く): 18198975

約数列:

[1, 3, 5, 7, 15, 21, 29, 35, 87, 105, 145, 203, 435, 609, 1015, 3045, 6701, 20103, 33505, 46907, 100515, 140721, 194329, 234535, 582987, 703605, 971645, 1360303, 2914935, 4080909, 6801515, 20404545]

約数ペア:

[(1, 20404545), (3, 6801515), (5, 4080909), (7, 2914935), (15, 1360303), (21, 971645), (29, 703605), (35, 582987), (87, 234535), (105, 194329), (145, 140721), (203, 100515), (435, 46907), (609, 33505), (1015, 20103), (3045, 6701)]