21207692

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{4969}}^1$

素因数の和:5081

約数の個数: 24

約数和(自身を含む): 40913040

約数和(自身を除く): 19705348

約数列:

[1, 2, 4, 11, 22, 44, 97, 194, 388, 1067, 2134, 4268, 4969, 9938, 19876, 54659, 109318, 218636, 481993, 963986, 1927972, 5301923, 10603846, 21207692]

約数ペア:

[(1, 21207692), (2, 10603846), (4, 5301923), (11, 1927972), (22, 963986), (44, 481993), (97, 218636), (194, 109318), (388, 54659), (1067, 19876), (2134, 9938), (4268, 4969)]