21653203

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{2857}}^1$

素因数の和:2934

約数の個数: 16

約数和(自身を含む): 25927776

約数和(自身を除く): 4274573

約数列:

[1, 11, 13, 53, 143, 583, 689, 2857, 7579, 31427, 37141, 151421, 408551, 1665631, 1968473, 21653203]

約数ペア:

[(1, 21653203), (11, 1968473), (13, 1665631), (53, 408551), (143, 151421), (583, 37141), (689, 31427), (2857, 7579)]