71278179

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{257}}^1\times {\mathrm{281}}^1$

素因数の和:595

約数の個数: 32

約数和(自身を含む): 111753216

約数和(自身を除く): 40475037

約数列:

[1, 3, 7, 21, 47, 141, 257, 281, 329, 771, 843, 987, 1799, 1967, 5397, 5901, 12079, 13207, 36237, 39621, 72217, 84553, 92449, 216651, 253659, 277347, 505519, 1516557, 3394199, 10182597, 23759393, 71278179]

約数ペア:

[(1, 71278179), (3, 23759393), (7, 10182597), (21, 3394199), (47, 1516557), (141, 505519), (257, 277347), (281, 253659), (329, 216651), (771, 92449), (843, 84553), (987, 72217), (1799, 39621), (1967, 36237), (5397, 13207), (5901, 12079)]