20768156948

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3548899}}^1$

素因数の和:3548940

約数の個数: 48

約数和(自身を含む): 47697216000

約数和(自身を除く): 26929059052

約数列:

[1, 2, 4, 7, 11, 14, 19, 22, 28, 38, 44, 76, 77, 133, 154, 209, 266, 308, 418, 532, 836, 1463, 2926, 5852, 3548899, 7097798, 14195596, 24842293, 39037889, 49684586, 67429081, 78075778, 99369172, 134858162, 156151556, 269716324, 273265223, 472003567, 546530446, 741719891, 944007134, 1093060892, 1483439782, 1888014268, 2966879564, 5192039237, 10384078474, 20768156948]

約数ペア:

[(1, 20768156948), (2, 10384078474), (4, 5192039237), (7, 2966879564), (11, 1888014268), (14, 1483439782), (19, 1093060892), (22, 944007134), (28, 741719891), (38, 546530446), (44, 472003567), (76, 273265223), (77, 269716324), (133, 156151556), (154, 134858162), (209, 99369172), (266, 78075778), (308, 67429081), (418, 49684586), (532, 39037889), (836, 24842293), (1463, 14195596), (2926, 7097798), (5852, 3548899)]