20994768

素因数分解:

$2^4\times 3^3\times {\mathrm{23}}^1\times {\mathrm{2113}}^1$

素因数の和:2153

約数の個数: 80

約数和(自身を含む): 62912640

約数和(自身を除く): 41917872

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 23, 24, 27, 36, 46, 48, 54, 69, 72, 92, 108, 138, 144, 184, 207, 216, 276, 368, 414, 432, 552, 621, 828, 1104, 1242, 1656, 2113, 2484, 3312, 4226, 4968, 6339, 8452, 9936, 12678, 16904, 19017, 25356, 33808, 38034, 48599, 50712, 57051, 76068, 97198, 101424, 114102, 145797, 152136, 194396, 228204, 291594, 304272, 388792, 437391, 456408, 583188, 777584, 874782, 912816, 1166376, 1312173, 1749564, 2332752, 2624346, 3499128, 5248692, 6998256, 10497384, 20994768]

約数ペア:

[(1, 20994768), (2, 10497384), (3, 6998256), (4, 5248692), (6, 3499128), (8, 2624346), (9, 2332752), (12, 1749564), (16, 1312173), (18, 1166376), (23, 912816), (24, 874782), (27, 777584), (36, 583188), (46, 456408), (48, 437391), (54, 388792), (69, 304272), (72, 291594), (92, 228204), (108, 194396), (138, 152136), (144, 145797), (184, 114102), (207, 101424), (216, 97198), (276, 76068), (368, 57051), (414, 50712), (432, 48599), (552, 38034), (621, 33808), (828, 25356), (1104, 19017), (1242, 16904), (1656, 12678), (2113, 9936), (2484, 8452), (3312, 6339), (4226, 4968)]