81851253

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^2\times {\mathrm{89}}^1$

素因数の和:194

約数の個数: 48

約数和(自身を含む): 128692800

約数和(自身を除く): 46841547

約数列:

[1, 3, 11, 29, 31, 33, 87, 89, 93, 267, 319, 341, 899, 957, 961, 979, 1023, 2581, 2697, 2759, 2883, 2937, 7743, 8277, 9889, 10571, 27869, 28391, 29667, 30349, 31713, 80011, 83607, 85173, 85529, 91047, 240033, 256587, 306559, 880121, 919677, 940819, 2480341, 2640363, 2822457, 7441023, 27283751, 81851253]

約数ペア:

[(1, 81851253), (3, 27283751), (11, 7441023), (29, 2822457), (31, 2640363), (33, 2480341), (87, 940819), (89, 919677), (93, 880121), (267, 306559), (319, 256587), (341, 240033), (899, 91047), (957, 85529), (961, 85173), (979, 83607), (1023, 80011), (2581, 31713), (2697, 30349), (2759, 29667), (2883, 28391), (2937, 27869), (7743, 10571), (8277, 9889)]