21000700068

素因数分解:

$2^2\times 3^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{1071683}}^1$

素因数の和:1071784

約数の個数: 48

約数和(自身を含む): 51852358656

約数和(自身を除く): 30851658588

約数列:

[1, 2, 3, 4, 6, 12, 23, 46, 69, 71, 92, 138, 142, 213, 276, 284, 426, 852, 1633, 3266, 4899, 6532, 9798, 19596, 1071683, 2143366, 3215049, 4286732, 6430098, 12860196, 24648709, 49297418, 73946127, 76089493, 98594836, 147892254, 152178986, 228268479, 295784508, 304357972, 456536958, 913073916, 1750058339, 3500116678, 5250175017, 7000233356, 10500350034, 21000700068]

約数ペア:

[(1, 21000700068), (2, 10500350034), (3, 7000233356), (4, 5250175017), (6, 3500116678), (12, 1750058339), (23, 913073916), (46, 456536958), (69, 304357972), (71, 295784508), (92, 228268479), (138, 152178986), (142, 147892254), (213, 98594836), (276, 76089493), (284, 73946127), (426, 49297418), (852, 24648709), (1633, 12860196), (3266, 6430098), (4899, 4286732), (6532, 3215049), (9798, 2143366), (19596, 1071683)]