18355521

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^2$

素因数の和:213

約数の個数: 24

約数和(自身を含む): 26248320

約数和(自身を除く): 7892799

約数列:

[1, 3, 29, 47, 67, 87, 141, 201, 1363, 1943, 3149, 4089, 4489, 5829, 9447, 13467, 91321, 130181, 210983, 273963, 390543, 632949, 6118507, 18355521]

約数ペア:

[(1, 18355521), (3, 6118507), (29, 632949), (47, 390543), (67, 273963), (87, 210983), (141, 130181), (201, 91321), (1363, 13467), (1943, 9447), (3149, 5829), (4089, 4489)]