212316309

素因数分解:

$3^4\times {\mathrm{331}}^1\times {\mathrm{7919}}^1$

素因数の和:8262

約数の個数: 20

約数和(自身を含む): 318162240

約数和(自身を除く): 105845931

約数列:

[1, 3, 9, 27, 81, 331, 993, 2979, 7919, 8937, 23757, 26811, 71271, 213813, 641439, 2621189, 7863567, 23590701, 70772103, 212316309]

約数ペア:

[(1, 212316309), (3, 70772103), (9, 23590701), (27, 7863567), (81, 2621189), (331, 641439), (993, 213813), (2979, 71271), (7919, 26811), (8937, 23757)]