21647474

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{157}}^1\times {\mathrm{971}}^1$

素因数の和:1201

約数の個数: 16

約数和(自身を含む): 33172416

約数和(自身を除く): 11524942

約数列:

[1, 2, 71, 142, 157, 314, 971, 1942, 11147, 22294, 68941, 137882, 152447, 304894, 10823737, 21647474]

約数ペア:

[(1, 21647474), (2, 10823737), (71, 304894), (142, 152447), (157, 137882), (314, 68941), (971, 22294), (1942, 11147)]