19263975

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{521}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 34953120

約数和(自身を除く): 15689145

約数列:

[1, 3, 5, 15, 17, 25, 29, 51, 75, 85, 87, 145, 255, 425, 435, 493, 521, 725, 1275, 1479, 1563, 2175, 2465, 2605, 7395, 7815, 8857, 12325, 13025, 15109, 26571, 36975, 39075, 44285, 45327, 75545, 132855, 221425, 226635, 256853, 377725, 664275, 770559, 1133175, 1284265, 3852795, 6421325, 19263975]

約数ペア:

[(1, 19263975), (3, 6421325), (5, 3852795), (15, 1284265), (17, 1133175), (25, 770559), (29, 664275), (51, 377725), (75, 256853), (85, 226635), (87, 221425), (145, 132855), (255, 75545), (425, 45327), (435, 44285), (493, 39075), (521, 36975), (725, 26571), (1275, 15109), (1479, 13025), (1563, 12325), (2175, 8857), (2465, 7815), (2605, 7395)]