20180853

素因数分解:

$3^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{571}}^1$

素因数の和:615

約数の個数: 64

約数和(自身を含む): 39536640

約数和(自身を除く): 19355787

約数列:

[1, 3, 7, 9, 11, 17, 21, 27, 33, 51, 63, 77, 99, 119, 153, 187, 189, 231, 297, 357, 459, 561, 571, 693, 1071, 1309, 1683, 1713, 2079, 3213, 3927, 3997, 5049, 5139, 6281, 9707, 11781, 11991, 15417, 18843, 29121, 35343, 35973, 43967, 56529, 67949, 87363, 106777, 107919, 131901, 169587, 203847, 262089, 320331, 395703, 611541, 747439, 960993, 1187109, 1834623, 2242317, 2882979, 6726951, 20180853]

約数ペア:

[(1, 20180853), (3, 6726951), (7, 2882979), (9, 2242317), (11, 1834623), (17, 1187109), (21, 960993), (27, 747439), (33, 611541), (51, 395703), (63, 320331), (77, 262089), (99, 203847), (119, 169587), (153, 131901), (187, 107919), (189, 106777), (231, 87363), (297, 67949), (357, 56529), (459, 43967), (561, 35973), (571, 35343), (693, 29121), (1071, 18843), (1309, 15417), (1683, 11991), (1713, 11781), (2079, 9707), (3213, 6281), (3927, 5139), (3997, 5049)]