19935748

素因数分解:

$2^2\times 7^2\times {\mathrm{37}}^1\times {\mathrm{2749}}^1$

素因数の和:2804

約数の個数: 36

約数和(自身を含む): 41695500

約数和(自身を除く): 21759752

約数列:

[1, 2, 4, 7, 14, 28, 37, 49, 74, 98, 148, 196, 259, 518, 1036, 1813, 2749, 3626, 5498, 7252, 10996, 19243, 38486, 76972, 101713, 134701, 203426, 269402, 406852, 538804, 711991, 1423982, 2847964, 4983937, 9967874, 19935748]

約数ペア:

[(1, 19935748), (2, 9967874), (4, 4983937), (7, 2847964), (14, 1423982), (28, 711991), (37, 538804), (49, 406852), (74, 269402), (98, 203426), (148, 134701), (196, 101713), (259, 76972), (518, 38486), (1036, 19243), (1813, 10996), (2749, 7252), (3626, 5498)]