19701784

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{571}}^1$

素因数の和:823

約数の個数: 32

約数和(自身を含む): 39124800

約数和(自身を除く): 19423016

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 227, 454, 571, 908, 1142, 1816, 2284, 4313, 4568, 8626, 10849, 17252, 21698, 34504, 43396, 86792, 129617, 259234, 518468, 1036936, 2462723, 4925446, 9850892, 19701784]

約数ペア:

[(1, 19701784), (2, 9850892), (4, 4925446), (8, 2462723), (19, 1036936), (38, 518468), (76, 259234), (152, 129617), (227, 86792), (454, 43396), (571, 34504), (908, 21698), (1142, 17252), (1816, 10849), (2284, 8626), (4313, 4568)]