12881771

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:179

約数の個数: 32

約数和(自身を含む): 16588800

約数和(自身を除く): 3707029

約数列:

[1, 7, 23, 29, 31, 89, 161, 203, 217, 623, 667, 713, 899, 2047, 2581, 2759, 4669, 4991, 6293, 14329, 18067, 19313, 20677, 59363, 63457, 80011, 144739, 415541, 444199, 560077, 1840253, 12881771]

約数ペア:

[(1, 12881771), (7, 1840253), (23, 560077), (29, 444199), (31, 415541), (89, 144739), (161, 80011), (203, 63457), (217, 59363), (623, 20677), (667, 19313), (713, 18067), (899, 14329), (2047, 6293), (2581, 4991), (2759, 4669)]