19986883

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{3169}}^1$

素因数の和:3246

約数の個数: 16

約数和(自身を含む): 24649920

約数和(自身を除く): 4663037

約数列:

[1, 7, 17, 53, 119, 371, 901, 3169, 6307, 22183, 53873, 167957, 377111, 1175699, 2855269, 19986883]

約数ペア:

[(1, 19986883), (7, 2855269), (17, 1175699), (53, 377111), (119, 167957), (371, 53873), (901, 22183), (3169, 6307)]