647164077

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{11731}}^1$

素因数の和:11849

約数の個数: 32

約数和(自身を含む): 1027160064

約数和(自身を除く): 379995987

約数列:

[1, 3, 7, 21, 37, 71, 111, 213, 259, 497, 777, 1491, 2627, 7881, 11731, 18389, 35193, 55167, 82117, 246351, 434047, 832901, 1302141, 2498703, 3038329, 5830307, 9114987, 17490921, 30817337, 92452011, 215721359, 647164077]

約数ペア:

[(1, 647164077), (3, 215721359), (7, 92452011), (21, 30817337), (37, 17490921), (71, 9114987), (111, 5830307), (213, 3038329), (259, 2498703), (497, 1302141), (777, 832901), (1491, 434047), (2627, 246351), (7881, 82117), (11731, 55167), (18389, 35193)]