20696522

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{263}}^1$

素因数の和:363

約数の個数: 48

約数和(自身を含む): 40087872

約数和(自身を除く): 19391350

約数列:

[1, 2, 7, 11, 14, 22, 49, 73, 77, 98, 146, 154, 263, 511, 526, 539, 803, 1022, 1078, 1606, 1841, 2893, 3577, 3682, 5621, 5786, 7154, 11242, 12887, 19199, 20251, 25774, 38398, 39347, 40502, 78694, 134393, 141757, 211189, 268786, 283514, 422378, 940751, 1478323, 1881502, 2956646, 10348261, 20696522]

約数ペア:

[(1, 20696522), (2, 10348261), (7, 2956646), (11, 1881502), (14, 1478323), (22, 940751), (49, 422378), (73, 283514), (77, 268786), (98, 211189), (146, 141757), (154, 134393), (263, 78694), (511, 40502), (526, 39347), (539, 38398), (803, 25774), (1022, 20251), (1078, 19199), (1606, 12887), (1841, 11242), (2893, 7154), (3577, 5786), (3682, 5621)]