1901991

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{6967}}^1$

素因数の和:6990

約数の個数: 16

約数和(自身を含む): 3121664

約数和(自身を除く): 1219673

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 6967, 20901, 48769, 90571, 146307, 271713, 633997, 1901991]

約数ペア:

[(1, 1901991), (3, 633997), (7, 271713), (13, 146307), (21, 90571), (39, 48769), (91, 20901), (273, 6967)]