19180812

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{389}}^1\times {\mathrm{587}}^1$

素因数の和:990

約数の個数: 48

約数和(自身を含む): 51367680

約数和(自身を除く): 32186868

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 389, 587, 778, 1167, 1174, 1556, 1761, 2334, 2348, 2723, 3522, 4109, 4668, 5446, 7044, 8169, 8218, 10892, 12327, 16338, 16436, 24654, 32676, 49308, 228343, 456686, 685029, 913372, 1370058, 1598401, 2740116, 3196802, 4795203, 6393604, 9590406, 19180812]

約数ペア:

[(1, 19180812), (2, 9590406), (3, 6393604), (4, 4795203), (6, 3196802), (7, 2740116), (12, 1598401), (14, 1370058), (21, 913372), (28, 685029), (42, 456686), (84, 228343), (389, 49308), (587, 32676), (778, 24654), (1167, 16436), (1174, 16338), (1556, 12327), (1761, 10892), (2334, 8218), (2348, 8169), (2723, 7044), (3522, 5446), (4109, 4668)]