19185525

素因数分解:

$3^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{661}}^1$

素因数の和:723

約数の個数: 48

約数和(自身を含む): 36118720

約数和(自身を除く): 16933195

約数列:

[1, 3, 5, 9, 15, 25, 27, 43, 45, 75, 129, 135, 215, 225, 387, 645, 661, 675, 1075, 1161, 1935, 1983, 3225, 3305, 5805, 5949, 9675, 9915, 16525, 17847, 28423, 29025, 29745, 49575, 85269, 89235, 142115, 148725, 255807, 426345, 446175, 710575, 767421, 1279035, 2131725, 3837105, 6395175, 19185525]

約数ペア:

[(1, 19185525), (3, 6395175), (5, 3837105), (9, 2131725), (15, 1279035), (25, 767421), (27, 710575), (43, 446175), (45, 426345), (75, 255807), (129, 148725), (135, 142115), (215, 89235), (225, 85269), (387, 49575), (645, 29745), (661, 29025), (675, 28423), (1075, 17847), (1161, 16525), (1935, 9915), (1983, 9675), (3225, 5949), (3305, 5805)]