19156389

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1171}}^1$

素因数の和:1241

約数の個数: 32

約数和(自身を含む): 31503360

約数和(自身を除く): 12346971

約数列:

[1, 3, 7, 19, 21, 41, 57, 123, 133, 287, 399, 779, 861, 1171, 2337, 3513, 5453, 8197, 16359, 22249, 24591, 48011, 66747, 144033, 155743, 336077, 467229, 912209, 1008231, 2736627, 6385463, 19156389]

約数ペア:

[(1, 19156389), (3, 6385463), (7, 2736627), (19, 1008231), (21, 912209), (41, 467229), (57, 336077), (123, 155743), (133, 144033), (287, 66747), (399, 48011), (779, 24591), (861, 22249), (1171, 16359), (2337, 8197), (3513, 5453)]