20443911

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{193}}^1$

素因数の和:311

約数の個数: 32

約数和(自身を含む): 30394368

約数和(自身を除く): 9950457

約数列:

[1, 3, 17, 31, 51, 67, 93, 193, 201, 527, 579, 1139, 1581, 2077, 3281, 3417, 5983, 6231, 9843, 12931, 17949, 35309, 38793, 101711, 105927, 219827, 305133, 400861, 659481, 1202583, 6814637, 20443911]

約数ペア:

[(1, 20443911), (3, 6814637), (17, 1202583), (31, 659481), (51, 400861), (67, 305133), (93, 219827), (193, 105927), (201, 101711), (527, 38793), (579, 35309), (1139, 17949), (1581, 12931), (2077, 9843), (3281, 6231), (3417, 5983)]