21800527

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1$

素因数の和:187

約数の個数: 32

約数和(自身を含む): 27574272

約数和(自身を除く): 5773745

約数列:

[1, 7, 23, 43, 47, 67, 161, 301, 329, 469, 989, 1081, 1541, 2021, 2881, 3149, 6923, 7567, 10787, 14147, 20167, 22043, 46483, 66263, 72427, 135407, 325381, 463841, 506989, 947849, 3114361, 21800527]

約数ペア:

[(1, 21800527), (7, 3114361), (23, 947849), (43, 506989), (47, 463841), (67, 325381), (161, 135407), (301, 72427), (329, 66263), (469, 46483), (989, 22043), (1081, 20167), (1541, 14147), (2021, 10787), (2881, 7567), (3149, 6923)]