18257211

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{3331}}^1$

素因数の和:3376

約数の個数: 32

約数和(自身を含む): 31987200

約数和(自身を除く): 13729989

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 87, 189, 203, 261, 609, 783, 1827, 3331, 5481, 9993, 23317, 29979, 69951, 89937, 96599, 209853, 289797, 629559, 676193, 869391, 2028579, 2608173, 6085737, 18257211]

約数ペア:

[(1, 18257211), (3, 6085737), (7, 2608173), (9, 2028579), (21, 869391), (27, 676193), (29, 629559), (63, 289797), (87, 209853), (189, 96599), (203, 89937), (261, 69951), (609, 29979), (783, 23317), (1827, 9993), (3331, 5481)]