20946975

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{2347}}^1$

素因数の和:2384

約数の個数: 48

約数和(自身を含む): 41925888

約数和(自身を除く): 20978913

約数列:

[1, 3, 5, 7, 15, 17, 21, 25, 35, 51, 75, 85, 105, 119, 175, 255, 357, 425, 525, 595, 1275, 1785, 2347, 2975, 7041, 8925, 11735, 16429, 35205, 39899, 49287, 58675, 82145, 119697, 176025, 199495, 246435, 279293, 410725, 598485, 837879, 997475, 1232175, 1396465, 2992425, 4189395, 6982325, 20946975]

約数ペア:

[(1, 20946975), (3, 6982325), (5, 4189395), (7, 2992425), (15, 1396465), (17, 1232175), (21, 997475), (25, 837879), (35, 598485), (51, 410725), (75, 279293), (85, 246435), (105, 199495), (119, 176025), (175, 119697), (255, 82145), (357, 58675), (425, 49287), (525, 39899), (595, 35205), (1275, 16429), (1785, 11735), (2347, 8925), (2975, 7041)]