18372987

素因数分解:

$3^7\times {\mathrm{31}}^1\times {\mathrm{271}}^1$

素因数の和:323

約数の個数: 32

約数和(自身を含む): 28549120

約数和(自身を除く): 10176133

約数列:

[1, 3, 9, 27, 31, 81, 93, 243, 271, 279, 729, 813, 837, 2187, 2439, 2511, 7317, 7533, 8401, 21951, 22599, 25203, 65853, 67797, 75609, 197559, 226827, 592677, 680481, 2041443, 6124329, 18372987]

約数ペア:

[(1, 18372987), (3, 6124329), (9, 2041443), (27, 680481), (31, 592677), (81, 226827), (93, 197559), (243, 75609), (271, 67797), (279, 65853), (729, 25203), (813, 22599), (837, 21951), (2187, 8401), (2439, 7533), (2511, 7317)]