20055981

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{193}}^1$

素因数の和:321

約数の個数: 32

約数和(自身を含む): 30394368

約数和(自身を除く): 10338387

約数列:

[1, 3, 11, 33, 47, 67, 141, 193, 201, 517, 579, 737, 1551, 2123, 2211, 3149, 6369, 9071, 9447, 12931, 27213, 34639, 38793, 99781, 103917, 142241, 299343, 426723, 607757, 1823271, 6685327, 20055981]

約数ペア:

[(1, 20055981), (3, 6685327), (11, 1823271), (33, 607757), (47, 426723), (67, 299343), (141, 142241), (193, 103917), (201, 99781), (517, 38793), (579, 34639), (737, 27213), (1551, 12931), (2123, 9447), (2211, 9071), (3149, 6369)]