19418805

素因数分解:

$3^3\times 5^1\times 7^1\times {\mathrm{20549}}^1$

素因数の和:20570

約数の個数: 32

約数和(自身を含む): 39456000

約数和(自身を除く): 20037195

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945, 20549, 61647, 102745, 143843, 184941, 308235, 431529, 554823, 719215, 924705, 1294587, 2157645, 2774115, 3883761, 6472935, 19418805]

約数ペア:

[(1, 19418805), (3, 6472935), (5, 3883761), (7, 2774115), (9, 2157645), (15, 1294587), (21, 924705), (27, 719215), (35, 554823), (45, 431529), (63, 308235), (105, 184941), (135, 143843), (189, 102745), (315, 61647), (945, 20549)]