90909

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1$

素因数の和:66

約数の個数: 32

約数和(自身を含む): 170240

約数和(自身を除く): 79331

約数列:

[1, 3, 7, 9, 13, 21, 27, 37, 39, 63, 91, 111, 117, 189, 259, 273, 333, 351, 481, 777, 819, 999, 1443, 2331, 2457, 3367, 4329, 6993, 10101, 12987, 30303, 90909]

約数ペア:

[(1, 90909), (3, 30303), (7, 12987), (9, 10101), (13, 6993), (21, 4329), (27, 3367), (37, 2457), (39, 2331), (63, 1443), (91, 999), (111, 819), (117, 777), (189, 481), (259, 351), (273, 333)]