21555286

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{4561}}^1$

素因数の和:4719

約数の個数: 16

約数和(自身を含む): 34488720

約数和(自身を除く): 12933434

約数列:

[1, 2, 17, 34, 139, 278, 2363, 4561, 4726, 9122, 77537, 155074, 633979, 1267958, 10777643, 21555286]

約数ペア:

[(1, 21555286), (2, 10777643), (17, 1267958), (34, 633979), (139, 155074), (278, 77537), (2363, 9122), (4561, 4726)]