19186371

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{73}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 31168800

約数和(自身を除く): 11982429

約数列:

[1, 3, 9, 19, 29, 53, 57, 73, 87, 159, 171, 219, 261, 477, 551, 657, 1007, 1387, 1537, 1653, 2117, 3021, 3869, 4161, 4611, 4959, 6351, 9063, 11607, 12483, 13833, 19053, 29203, 34821, 40223, 73511, 87609, 112201, 120669, 220533, 262827, 336603, 362007, 661599, 1009809, 2131819, 6395457, 19186371]

約数ペア:

[(1, 19186371), (3, 6395457), (9, 2131819), (19, 1009809), (29, 661599), (53, 362007), (57, 336603), (73, 262827), (87, 220533), (159, 120669), (171, 112201), (219, 87609), (261, 73511), (477, 40223), (551, 34821), (657, 29203), (1007, 19053), (1387, 13833), (1537, 12483), (1653, 11607), (2117, 9063), (3021, 6351), (3869, 4959), (4161, 4611)]