19994625

素因数分解:

$3^2\times 5^3\times 7^1\times {\mathrm{2539}}^1$

素因数の和:2567

約数の個数: 48

約数和(自身を含む): 41208960

約数和(自身を除く): 21214335

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 125, 175, 225, 315, 375, 525, 875, 1125, 1575, 2539, 2625, 7617, 7875, 12695, 17773, 22851, 38085, 53319, 63475, 88865, 114255, 159957, 190425, 266595, 317375, 444325, 571275, 799785, 952125, 1332975, 2221625, 2856375, 3998925, 6664875, 19994625]

約数ペア:

[(1, 19994625), (3, 6664875), (5, 3998925), (7, 2856375), (9, 2221625), (15, 1332975), (21, 952125), (25, 799785), (35, 571275), (45, 444325), (63, 317375), (75, 266595), (105, 190425), (125, 159957), (175, 114255), (225, 88865), (315, 63475), (375, 53319), (525, 38085), (875, 22851), (1125, 17773), (1575, 12695), (2539, 7875), (2625, 7617)]