21549636

素因数分解:

$2^2\times 3^2\times {\mathrm{71}}^1\times {\mathrm{8431}}^1$

素因数の和:8512

約数の個数: 36

約数和(自身を含む): 55246464

約数和(自身を除く): 33696828

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 71, 142, 213, 284, 426, 639, 852, 1278, 2556, 8431, 16862, 25293, 33724, 50586, 75879, 101172, 151758, 303516, 598601, 1197202, 1795803, 2394404, 3591606, 5387409, 7183212, 10774818, 21549636]

約数ペア:

[(1, 21549636), (2, 10774818), (3, 7183212), (4, 5387409), (6, 3591606), (9, 2394404), (12, 1795803), (18, 1197202), (36, 598601), (71, 303516), (142, 151758), (213, 101172), (284, 75879), (426, 50586), (639, 33724), (852, 25293), (1278, 16862), (2556, 8431)]