21198180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{15361}}^1$

素因数の和:15396

約数の個数: 48

約数和(自身を含む): 61939584

約数和(自身を除く): 40741404

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 23, 30, 46, 60, 69, 92, 115, 138, 230, 276, 345, 460, 690, 1380, 15361, 30722, 46083, 61444, 76805, 92166, 153610, 184332, 230415, 307220, 353303, 460830, 706606, 921660, 1059909, 1413212, 1766515, 2119818, 3533030, 4239636, 5299545, 7066060, 10599090, 21198180]

約数ペア:

[(1, 21198180), (2, 10599090), (3, 7066060), (4, 5299545), (5, 4239636), (6, 3533030), (10, 2119818), (12, 1766515), (15, 1413212), (20, 1059909), (23, 921660), (30, 706606), (46, 460830), (60, 353303), (69, 307220), (92, 230415), (115, 184332), (138, 153610), (230, 92166), (276, 76805), (345, 61444), (460, 46083), (690, 30722), (1380, 15361)]