219670521

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{147331}}^1$

素因数の和:147412

約数の個数: 16

約数和(自身を含む): 339452928

約数和(自身を除く): 119782407

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 147331, 441993, 1031317, 3093951, 10460501, 31381503, 73223507, 219670521]

約数ペア:

[(1, 219670521), (3, 73223507), (7, 31381503), (21, 10460501), (71, 3093951), (213, 1031317), (497, 441993), (1491, 147331)]