19771257

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{4021}}^1$

素因数の和:4184

約数の個数: 16

約数和(自身を含む): 28958400

約数和(自身を除く): 9187143

約数列:

[1, 3, 11, 33, 149, 447, 1639, 4021, 4917, 12063, 44231, 132693, 599129, 1797387, 6590419, 19771257]

約数ペア:

[(1, 19771257), (3, 6590419), (11, 1797387), (33, 599129), (149, 132693), (447, 44231), (1639, 12063), (4021, 4917)]