21249704

素因数分解:

$2^3\times 7^1\times {\mathrm{379459}}^1$

素因数の和:379472

約数の個数: 16

約数和(自身を含む): 45535200

約数和(自身を除く): 24285496

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 379459, 758918, 1517836, 2656213, 3035672, 5312426, 10624852, 21249704]

約数ペア:

[(1, 21249704), (2, 10624852), (4, 5312426), (7, 3035672), (8, 2656213), (14, 1517836), (28, 758918), (56, 379459)]