21441378

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{8369}}^1$

素因数の和:8442

約数の個数: 32

約数和(自身を含む): 49818240

約数和(自身を除く): 28376862

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 61, 122, 183, 366, 427, 854, 1281, 2562, 8369, 16738, 25107, 50214, 58583, 117166, 175749, 351498, 510509, 1021018, 1531527, 3063054, 3573563, 7147126, 10720689, 21441378]

約数ペア:

[(1, 21441378), (2, 10720689), (3, 7147126), (6, 3573563), (7, 3063054), (14, 1531527), (21, 1021018), (42, 510509), (61, 351498), (122, 175749), (183, 117166), (366, 58583), (427, 50214), (854, 25107), (1281, 16738), (2562, 8369)]