19385775

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{2971}}^1$

素因数の和:3016

約数の個数: 36

約数和(自身を含む): 35931480

約数和(自身を除く): 16545705

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 75, 87, 145, 225, 261, 435, 725, 1305, 2175, 2971, 6525, 8913, 14855, 26739, 44565, 74275, 86159, 133695, 222825, 258477, 430795, 668475, 775431, 1292385, 2153975, 3877155, 6461925, 19385775]

約数ペア:

[(1, 19385775), (3, 6461925), (5, 3877155), (9, 2153975), (15, 1292385), (25, 775431), (29, 668475), (45, 430795), (75, 258477), (87, 222825), (145, 133695), (225, 86159), (261, 74275), (435, 44565), (725, 26739), (1305, 14855), (2175, 8913), (2971, 6525)]