21270699

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{211}}^1\times {\mathrm{487}}^1$

素因数の和:727

約数の個数: 24

約数和(自身を含む): 32278272

約数和(自身を除く): 11007573

約数列:

[1, 3, 9, 23, 69, 207, 211, 487, 633, 1461, 1899, 4383, 4853, 11201, 14559, 33603, 43677, 100809, 102757, 308271, 924813, 2363411, 7090233, 21270699]

約数ペア:

[(1, 21270699), (3, 7090233), (9, 2363411), (23, 924813), (69, 308271), (207, 102757), (211, 100809), (487, 43677), (633, 33603), (1461, 14559), (1899, 11201), (4383, 4853)]