19982445

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{31}}^1\times {\mathrm{877}}^1$

素因数の和:930

約数の個数: 48

約数和(自身を含む): 38435328

約数和(自身を除く): 18452883

約数列:

[1, 3, 5, 7, 15, 21, 31, 35, 49, 93, 105, 147, 155, 217, 245, 465, 651, 735, 877, 1085, 1519, 2631, 3255, 4385, 4557, 6139, 7595, 13155, 18417, 22785, 27187, 30695, 42973, 81561, 92085, 128919, 135935, 190309, 214865, 407805, 570927, 644595, 951545, 1332163, 2854635, 3996489, 6660815, 19982445]

約数ペア:

[(1, 19982445), (3, 6660815), (5, 3996489), (7, 2854635), (15, 1332163), (21, 951545), (31, 644595), (35, 570927), (49, 407805), (93, 214865), (105, 190309), (147, 135935), (155, 128919), (217, 92085), (245, 81561), (465, 42973), (651, 30695), (735, 27187), (877, 22785), (1085, 18417), (1519, 13155), (2631, 7595), (3255, 6139), (4385, 4557)]