21231429

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{1993}}^1$

素因数の和:2116

約数の個数: 16

約数和(自身を含む): 29287872

約数和(自身を除く): 8056443

約数列:

[1, 3, 53, 67, 159, 201, 1993, 3551, 5979, 10653, 105629, 133531, 316887, 400593, 7077143, 21231429]

約数ペア:

[(1, 21231429), (3, 7077143), (53, 400593), (67, 316887), (159, 133531), (201, 105629), (1993, 10653), (3551, 5979)]