20089557

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1$

素因数の和:170

約数の個数: 48

約数和(自身を含む): 32343168

約数和(自身を除く): 12253611

約数列:

[1, 3, 9, 23, 37, 43, 61, 69, 111, 129, 183, 207, 333, 387, 549, 851, 989, 1403, 1591, 2257, 2553, 2623, 2967, 4209, 4773, 6771, 7659, 7869, 8901, 12627, 14319, 20313, 23607, 36593, 51911, 60329, 97051, 109779, 155733, 180987, 291153, 329337, 467199, 542961, 873459, 2232173, 6696519, 20089557]

約数ペア:

[(1, 20089557), (3, 6696519), (9, 2232173), (23, 873459), (37, 542961), (43, 467199), (61, 329337), (69, 291153), (111, 180987), (129, 155733), (183, 109779), (207, 97051), (333, 60329), (387, 51911), (549, 36593), (851, 23607), (989, 20313), (1403, 14319), (1591, 12627), (2257, 8901), (2553, 7869), (2623, 7659), (2967, 6771), (4209, 4773)]