21368776

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{18679}}^1$

素因数の和:18709

約数の個数: 32

約数和(自身を含む): 47073600

約数和(自身を除く): 25704824

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 18679, 37358, 74716, 149432, 205469, 242827, 410938, 485654, 821876, 971308, 1643752, 1942616, 2671097, 5342194, 10684388, 21368776]

約数ペア:

[(1, 21368776), (2, 10684388), (4, 5342194), (8, 2671097), (11, 1942616), (13, 1643752), (22, 971308), (26, 821876), (44, 485654), (52, 410938), (88, 242827), (104, 205469), (143, 149432), (286, 74716), (572, 37358), (1144, 18679)]