20940156

素因数分解:

$2^2\times 3^2\times {\mathrm{719}}^1\times {\mathrm{809}}^1$

素因数の和:1538

約数の個数: 36

約数和(自身を含む): 53071200

約数和(自身を除く): 32131044

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 719, 809, 1438, 1618, 2157, 2427, 2876, 3236, 4314, 4854, 6471, 7281, 8628, 9708, 12942, 14562, 25884, 29124, 581671, 1163342, 1745013, 2326684, 3490026, 5235039, 6980052, 10470078, 20940156]

約数ペア:

[(1, 20940156), (2, 10470078), (3, 6980052), (4, 5235039), (6, 3490026), (9, 2326684), (12, 1745013), (18, 1163342), (36, 581671), (719, 29124), (809, 25884), (1438, 14562), (1618, 12942), (2157, 9708), (2427, 8628), (2876, 7281), (3236, 6471), (4314, 4854)]