156975021

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{40847}}^1$

素因数の和:40921

約数の個数: 24

約数和(自身を含む): 263387904

約数和(自身を除く): 106412883

約数列:

[1, 3, 7, 9, 21, 61, 63, 183, 427, 549, 1281, 3843, 40847, 122541, 285929, 367623, 857787, 2491667, 2573361, 7475001, 17441669, 22425003, 52325007, 156975021]

約数ペア:

[(1, 156975021), (3, 52325007), (7, 22425003), (9, 17441669), (21, 7475001), (61, 2573361), (63, 2491667), (183, 857787), (427, 367623), (549, 285929), (1281, 122541), (3843, 40847)]