21628748270

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{1213}}^1\times {\mathrm{1979}}^1$

素因数の和:3269

約数の個数: 64

約数和(自身を含む): 42055485120

約数和(自身を除く): 20426736850

約数列:

[1, 2, 5, 10, 17, 34, 53, 85, 106, 170, 265, 530, 901, 1213, 1802, 1979, 2426, 3958, 4505, 6065, 9010, 9895, 12130, 19790, 20621, 33643, 41242, 64289, 67286, 103105, 104887, 128578, 168215, 206210, 209774, 321445, 336430, 524435, 642890, 1048870, 1092913, 1783079, 2185826, 2400527, 3566158, 4801054, 5464565, 8915395, 10929130, 12002635, 17830790, 24005270, 40808959, 81617918, 127227931, 204044795, 254455862, 408089590, 636139655, 1272279310, 2162874827, 4325749654, 10814374135, 21628748270]

約数ペア:

[(1, 21628748270), (2, 10814374135), (5, 4325749654), (10, 2162874827), (17, 1272279310), (34, 636139655), (53, 408089590), (85, 254455862), (106, 204044795), (170, 127227931), (265, 81617918), (530, 40808959), (901, 24005270), (1213, 17830790), (1802, 12002635), (1979, 10929130), (2426, 8915395), (3958, 5464565), (4505, 4801054), (6065, 3566158), (9010, 2400527), (9895, 2185826), (12130, 1783079), (19790, 1092913), (20621, 1048870), (33643, 642890), (41242, 524435), (64289, 336430), (67286, 321445), (103105, 209774), (104887, 206210), (128578, 168215)]