21695619

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^2$

素因数の和:275

約数の個数: 24

約数和(自身を含む): 32300352

約数和(自身を除く): 10604733

約数列:

[1, 3, 11, 33, 83, 89, 249, 267, 913, 979, 2739, 2937, 7387, 7921, 22161, 23763, 81257, 87131, 243771, 261393, 657443, 1972329, 7231873, 21695619]

約数ペア:

[(1, 21695619), (3, 7231873), (11, 1972329), (33, 657443), (83, 261393), (89, 243771), (249, 87131), (267, 81257), (913, 23763), (979, 22161), (2739, 7921), (2937, 7387)]