21419667

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{157}}^1\times {\mathrm{163}}^1$

素因数の和:360

約数の個数: 32

約数和(自身を含む): 33167360

約数和(自身を除く): 11747693

約数列:

[1, 3, 9, 27, 31, 93, 157, 163, 279, 471, 489, 837, 1413, 1467, 4239, 4401, 4867, 5053, 14601, 15159, 25591, 43803, 45477, 76773, 131409, 136431, 230319, 690957, 793321, 2379963, 7139889, 21419667]

約数ペア:

[(1, 21419667), (3, 7139889), (9, 2379963), (27, 793321), (31, 690957), (93, 230319), (157, 136431), (163, 131409), (279, 76773), (471, 45477), (489, 43803), (837, 25591), (1413, 15159), (1467, 14601), (4239, 5053), (4401, 4867)]