20547208

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{12289}}^1$

素因数の和:12325

約数の個数: 32

約数和(自身を含む): 44244000

約数和(自身を除く): 23696792

約数列:

[1, 2, 4, 8, 11, 19, 22, 38, 44, 76, 88, 152, 209, 418, 836, 1672, 12289, 24578, 49156, 98312, 135179, 233491, 270358, 466982, 540716, 933964, 1081432, 1867928, 2568401, 5136802, 10273604, 20547208]

約数ペア:

[(1, 20547208), (2, 10273604), (4, 5136802), (8, 2568401), (11, 1867928), (19, 1081432), (22, 933964), (38, 540716), (44, 466982), (76, 270358), (88, 233491), (152, 135179), (209, 98312), (418, 49156), (836, 24578), (1672, 12289)]