21807411437

素因数分解:

$7^4\times {\mathrm{59}}^1\times {\mathrm{257}}^1\times {\mathrm{599}}^1$

素因数の和:943

約数の個数: 40

約数和(自身を含む): 26015688000

約数和(自身を除く): 4208276563

約数列:

[1, 7, 49, 59, 257, 343, 413, 599, 1799, 2401, 2891, 4193, 12593, 15163, 20237, 29351, 35341, 88151, 106141, 141659, 153943, 205457, 247387, 617057, 742987, 1077601, 1438199, 1731709, 5200909, 7543207, 9082637, 12121963, 36406363, 52802449, 63578459, 84853741, 369617143, 445049213, 3115344491, 21807411437]

約数ペア:

[(1, 21807411437), (7, 3115344491), (49, 445049213), (59, 369617143), (257, 84853741), (343, 63578459), (413, 52802449), (599, 36406363), (1799, 12121963), (2401, 9082637), (2891, 7543207), (4193, 5200909), (12593, 1731709), (15163, 1438199), (20237, 1077601), (29351, 742987), (35341, 617057), (88151, 247387), (106141, 205457), (141659, 153943)]