20508752

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6133}}^1$

素因数の和:6171

約数の個数: 40

約数和(自身を含む): 45636960

約数和(自身を除く): 25128208

約数列:

[1, 2, 4, 8, 11, 16, 19, 22, 38, 44, 76, 88, 152, 176, 209, 304, 418, 836, 1672, 3344, 6133, 12266, 24532, 49064, 67463, 98128, 116527, 134926, 233054, 269852, 466108, 539704, 932216, 1079408, 1281797, 1864432, 2563594, 5127188, 10254376, 20508752]

約数ペア:

[(1, 20508752), (2, 10254376), (4, 5127188), (8, 2563594), (11, 1864432), (16, 1281797), (19, 1079408), (22, 932216), (38, 539704), (44, 466108), (76, 269852), (88, 233054), (152, 134926), (176, 116527), (209, 98128), (304, 67463), (418, 49064), (836, 24532), (1672, 12266), (3344, 6133)]