19151601

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{6857}}^1$

素因数の和:6893

約数の個数: 24

約数和(自身を含む): 31272480

約数和(自身を除く): 12120879

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 6857, 20571, 47999, 130283, 143997, 335993, 390849, 911981, 1007979, 2735943, 6383867, 19151601]

約数ペア:

[(1, 19151601), (3, 6383867), (7, 2735943), (19, 1007979), (21, 911981), (49, 390849), (57, 335993), (133, 143997), (147, 130283), (399, 47999), (931, 20571), (2793, 6857)]