491738403

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1\times {\mathrm{691}}^1$

素因数の和:1035

約数の個数: 32

約数和(自身を含む): 719857152

約数和(自身を除く): 228118749

約数列:

[1, 3, 13, 39, 71, 213, 257, 691, 771, 923, 2073, 2769, 3341, 8983, 10023, 18247, 26949, 49061, 54741, 147183, 177587, 237211, 532761, 637793, 711633, 1913379, 2308631, 6925893, 12608677, 37826031, 163912801, 491738403]

約数ペア:

[(1, 491738403), (3, 163912801), (13, 37826031), (39, 12608677), (71, 6925893), (213, 2308631), (257, 1913379), (691, 711633), (771, 637793), (923, 532761), (2073, 237211), (2769, 177587), (3341, 147183), (8983, 54741), (10023, 49061), (18247, 26949)]