21489076

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1303}}^1$

素因数の和:1364

約数の個数: 48

約数和(自身を含む): 46735360

約数和(自身を除く): 25246284

約数列:

[1, 2, 4, 7, 14, 19, 28, 31, 38, 62, 76, 124, 133, 217, 266, 434, 532, 589, 868, 1178, 1303, 2356, 2606, 4123, 5212, 8246, 9121, 16492, 18242, 24757, 36484, 40393, 49514, 80786, 99028, 161572, 173299, 282751, 346598, 565502, 693196, 767467, 1131004, 1534934, 3069868, 5372269, 10744538, 21489076]

約数ペア:

[(1, 21489076), (2, 10744538), (4, 5372269), (7, 3069868), (14, 1534934), (19, 1131004), (28, 767467), (31, 693196), (38, 565502), (62, 346598), (76, 282751), (124, 173299), (133, 161572), (217, 99028), (266, 80786), (434, 49514), (532, 40393), (589, 36484), (868, 24757), (1178, 18242), (1303, 16492), (2356, 9121), (2606, 8246), (4123, 5212)]