21388666

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{761}}^1$

素因数の和:846

約数の個数: 32

約数和(自身を含む): 36868608

約数和(自身を除く): 15479942

約数列:

[1, 2, 13, 23, 26, 46, 47, 94, 299, 598, 611, 761, 1081, 1222, 1522, 2162, 9893, 14053, 17503, 19786, 28106, 35006, 35767, 71534, 227539, 455078, 464971, 822641, 929942, 1645282, 10694333, 21388666]

約数ペア:

[(1, 21388666), (2, 10694333), (13, 1645282), (23, 929942), (26, 822641), (46, 464971), (47, 455078), (94, 227539), (299, 71534), (598, 35767), (611, 35006), (761, 28106), (1081, 19786), (1222, 17503), (1522, 14053), (2162, 9893)]