19772775

素因数分解:

$3^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{2663}}^1$

素因数の和:2693

約数の個数: 48

約数和(自身を含む): 39640320

約数和(自身を除く): 19867545

約数列:

[1, 3, 5, 9, 11, 15, 25, 27, 33, 45, 55, 75, 99, 135, 165, 225, 275, 297, 495, 675, 825, 1485, 2475, 2663, 7425, 7989, 13315, 23967, 29293, 39945, 66575, 71901, 87879, 119835, 146465, 199725, 263637, 359505, 439395, 599175, 732325, 790911, 1318185, 1797525, 2196975, 3954555, 6590925, 19772775]

約数ペア:

[(1, 19772775), (3, 6590925), (5, 3954555), (9, 2196975), (11, 1797525), (15, 1318185), (25, 790911), (27, 732325), (33, 599175), (45, 439395), (55, 359505), (75, 263637), (99, 199725), (135, 146465), (165, 119835), (225, 87879), (275, 71901), (297, 66575), (495, 39945), (675, 29293), (825, 23967), (1485, 13315), (2475, 7989), (2663, 7425)]