19973025

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{3061}}^1$

素因数の和:3106

約数の個数: 36

約数和(自身を含む): 37019580

約数和(自身を除く): 17046555

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 75, 87, 145, 225, 261, 435, 725, 1305, 2175, 3061, 6525, 9183, 15305, 27549, 45915, 76525, 88769, 137745, 229575, 266307, 443845, 688725, 798921, 1331535, 2219225, 3994605, 6657675, 19973025]

約数ペア:

[(1, 19973025), (3, 6657675), (5, 3994605), (9, 2219225), (15, 1331535), (25, 798921), (29, 688725), (45, 443845), (75, 266307), (87, 229575), (145, 137745), (225, 88769), (261, 76525), (435, 45915), (725, 27549), (1305, 15305), (2175, 9183), (3061, 6525)]