19674213

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{641}}^1\times {\mathrm{787}}^1$

素因数の和:1444

約数の個数: 16

約数和(自身を含む): 28330176

約数和(自身を除く): 8655963

約数列:

[1, 3, 13, 39, 641, 787, 1923, 2361, 8333, 10231, 24999, 30693, 504467, 1513401, 6558071, 19674213]

約数ペア:

[(1, 19674213), (3, 6558071), (13, 1513401), (39, 504467), (641, 30693), (787, 24999), (1923, 10231), (2361, 8333)]