17988201

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{257}}^1$

素因数の和:382

約数の個数: 48

約数和(自身を含む): 32842368

約数和(自身を除く): 14854167

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 101, 231, 257, 303, 693, 707, 771, 909, 1111, 1799, 2121, 2313, 2827, 3333, 5397, 6363, 7777, 8481, 9999, 16191, 19789, 23331, 25443, 25957, 59367, 69993, 77871, 178101, 181699, 233613, 285527, 545097, 856581, 1635291, 1998689, 2569743, 5996067, 17988201]

約数ペア:

[(1, 17988201), (3, 5996067), (7, 2569743), (9, 1998689), (11, 1635291), (21, 856581), (33, 545097), (63, 285527), (77, 233613), (99, 181699), (101, 178101), (231, 77871), (257, 69993), (303, 59367), (693, 25957), (707, 25443), (771, 23331), (909, 19789), (1111, 16191), (1799, 9999), (2121, 8481), (2313, 7777), (2827, 6363), (3333, 5397)]