19963335

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{157}}^1\times {\mathrm{173}}^1$

素因数の和:352

約数の個数: 48

約数和(自身を含む): 37609056

約数和(自身を除く): 17645721

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 157, 173, 245, 471, 519, 735, 785, 865, 1099, 1211, 2355, 2595, 3297, 3633, 5495, 6055, 7693, 8477, 16485, 18165, 23079, 25431, 27161, 38465, 42385, 81483, 115395, 127155, 135805, 190127, 407415, 570381, 950635, 1330889, 2851905, 3992667, 6654445, 19963335]

約数ペア:

[(1, 19963335), (3, 6654445), (5, 3992667), (7, 2851905), (15, 1330889), (21, 950635), (35, 570381), (49, 407415), (105, 190127), (147, 135805), (157, 127155), (173, 115395), (245, 81483), (471, 42385), (519, 38465), (735, 27161), (785, 25431), (865, 23079), (1099, 18165), (1211, 16485), (2355, 8477), (2595, 7693), (3297, 6055), (3633, 5495)]