20121075

素因数分解:

$3^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{2293}}^1$

素因数の和:2325

約数の個数: 48

約数和(自身を含む): 39823840

約数和(自身を除く): 19702765

約数列:

[1, 3, 5, 9, 13, 15, 25, 27, 39, 45, 65, 75, 117, 135, 195, 225, 325, 351, 585, 675, 975, 1755, 2293, 2925, 6879, 8775, 11465, 20637, 29809, 34395, 57325, 61911, 89427, 103185, 149045, 171975, 268281, 309555, 447135, 515925, 745225, 804843, 1341405, 1547775, 2235675, 4024215, 6707025, 20121075]

約数ペア:

[(1, 20121075), (3, 6707025), (5, 4024215), (9, 2235675), (13, 1547775), (15, 1341405), (25, 804843), (27, 745225), (39, 515925), (45, 447135), (65, 309555), (75, 268281), (117, 171975), (135, 149045), (195, 103185), (225, 89427), (325, 61911), (351, 57325), (585, 34395), (675, 29809), (975, 20637), (1755, 11465), (2293, 8775), (2925, 6879)]