2589741

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1$

素因数の和:162

約数の個数: 48

約数和(自身を含む): 4837248

約数和(自身を除く): 2247507

約数列:

[1, 3, 7, 9, 11, 21, 33, 37, 63, 77, 99, 101, 111, 231, 259, 303, 333, 407, 693, 707, 777, 909, 1111, 1221, 2121, 2331, 2849, 3333, 3663, 3737, 6363, 7777, 8547, 9999, 11211, 23331, 25641, 26159, 33633, 41107, 69993, 78477, 123321, 235431, 287749, 369963, 863247, 2589741]

約数ペア:

[(1, 2589741), (3, 863247), (7, 369963), (9, 287749), (11, 235431), (21, 123321), (33, 78477), (37, 69993), (63, 41107), (77, 33633), (99, 26159), (101, 25641), (111, 23331), (231, 11211), (259, 9999), (303, 8547), (333, 7777), (407, 6363), (693, 3737), (707, 3663), (777, 3333), (909, 2849), (1111, 2331), (1221, 2121)]