21070203

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1721}}^1$

素因数の和:1795

約数の個数: 32

約数和(自身を含む): 35707392

約数和(自身を除く): 14637189

約数列:

[1, 3, 7, 11, 21, 33, 53, 77, 159, 231, 371, 583, 1113, 1721, 1749, 4081, 5163, 12047, 12243, 18931, 36141, 56793, 91213, 132517, 273639, 397551, 638491, 1003343, 1915473, 3010029, 7023401, 21070203]

約数ペア:

[(1, 21070203), (3, 7023401), (7, 3010029), (11, 1915473), (21, 1003343), (33, 638491), (53, 397551), (77, 273639), (159, 132517), (231, 91213), (371, 56793), (583, 36141), (1113, 18931), (1721, 12243), (1749, 12047), (4081, 5163)]