279381921

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{19309}}^1$

素因数の和:19385

約数の個数: 32

約数和(自身を含む): 467147520

約数和(自身を除く): 187765599

約数列:

[1, 3, 7, 13, 21, 39, 53, 91, 159, 273, 371, 689, 1113, 2067, 4823, 14469, 19309, 57927, 135163, 251017, 405489, 753051, 1023377, 1757119, 3070131, 5271357, 7163639, 13303901, 21490917, 39911703, 93127307, 279381921]

約数ペア:

[(1, 279381921), (3, 93127307), (7, 39911703), (13, 21490917), (21, 13303901), (39, 7163639), (53, 5271357), (91, 3070131), (159, 1757119), (273, 1023377), (371, 753051), (689, 405489), (1113, 251017), (2067, 135163), (4823, 57927), (14469, 19309)]