21053758

素因数分解:

$2^1\times {\mathrm{11}}^4\times {\mathrm{719}}^1$

素因数の和:765

約数の個数: 20

約数和(自身を含む): 34786800

約数和(自身を除く): 13733042

約数列:

[1, 2, 11, 22, 121, 242, 719, 1331, 1438, 2662, 7909, 14641, 15818, 29282, 86999, 173998, 956989, 1913978, 10526879, 21053758]

約数ペア:

[(1, 21053758), (2, 10526879), (11, 1913978), (22, 956989), (121, 173998), (242, 86999), (719, 29282), (1331, 15818), (1438, 14641), (2662, 7909)]