19214559

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{809}}^1$

素因数の和:864

約数の個数: 48

約数和(自身を含む): 35380800

約数和(自身を除く): 16166241

約数列:

[1, 3, 7, 9, 13, 21, 29, 39, 63, 87, 91, 117, 203, 261, 273, 377, 609, 809, 819, 1131, 1827, 2427, 2639, 3393, 5663, 7281, 7917, 10517, 16989, 23461, 23751, 31551, 50967, 70383, 73619, 94653, 164227, 211149, 220857, 304993, 492681, 662571, 914979, 1478043, 2134951, 2744937, 6404853, 19214559]

約数ペア:

[(1, 19214559), (3, 6404853), (7, 2744937), (9, 2134951), (13, 1478043), (21, 914979), (29, 662571), (39, 492681), (63, 304993), (87, 220857), (91, 211149), (117, 164227), (203, 94653), (261, 73619), (273, 70383), (377, 50967), (609, 31551), (809, 23751), (819, 23461), (1131, 16989), (1827, 10517), (2427, 7917), (2639, 7281), (3393, 5663)]