16721859

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{379}}^1$

素因数の和:591

約数の個数: 32

約数和(自身を含む): 28016640

約数和(自身を除く): 11294781

約数列:

[1, 3, 7, 11, 21, 33, 77, 191, 231, 379, 573, 1137, 1337, 2101, 2653, 4011, 4169, 6303, 7959, 12507, 14707, 29183, 44121, 72389, 87549, 217167, 506723, 796279, 1520169, 2388837, 5573953, 16721859]

約数ペア:

[(1, 16721859), (3, 5573953), (7, 2388837), (11, 1520169), (21, 796279), (33, 506723), (77, 217167), (191, 87549), (231, 72389), (379, 44121), (573, 29183), (1137, 14707), (1337, 12507), (2101, 7959), (2653, 6303), (4011, 4169)]