19478416

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{227}}^1$

素因数の和:439

約数の個数: 40

約数和(自身を含む): 39354624

約数和(自身を除く): 19876208

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 173, 227, 248, 346, 454, 496, 692, 908, 1384, 1816, 2768, 3632, 5363, 7037, 10726, 14074, 21452, 28148, 39271, 42904, 56296, 78542, 85808, 112592, 157084, 314168, 628336, 1217401, 2434802, 4869604, 9739208, 19478416]

約数ペア:

[(1, 19478416), (2, 9739208), (4, 4869604), (8, 2434802), (16, 1217401), (31, 628336), (62, 314168), (124, 157084), (173, 112592), (227, 85808), (248, 78542), (346, 56296), (454, 42904), (496, 39271), (692, 28148), (908, 21452), (1384, 14074), (1816, 10726), (2768, 7037), (3632, 5363)]