72821007

素因数分解:

$3^2\times 7^2\times {\mathrm{61}}^1\times {\mathrm{2707}}^1$

素因数の和:2788

約数の個数: 36

約数和(自身を含む): 124410936

約数和(自身を除く): 51589929

約数列:

[1, 3, 7, 9, 21, 49, 61, 63, 147, 183, 427, 441, 549, 1281, 2707, 2989, 3843, 8121, 8967, 18949, 24363, 26901, 56847, 132643, 165127, 170541, 397929, 495381, 1155889, 1193787, 1486143, 3467667, 8091223, 10403001, 24273669, 72821007]

約数ペア:

[(1, 72821007), (3, 24273669), (7, 10403001), (9, 8091223), (21, 3467667), (49, 1486143), (61, 1193787), (63, 1155889), (147, 495381), (183, 397929), (427, 170541), (441, 165127), (549, 132643), (1281, 56847), (2707, 26901), (2989, 24363), (3843, 18949), (8121, 8967)]