19685806

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{677}}^1$

素因数の和:784

約数の個数: 32

約数和(自身を含む): 35407872

約数和(自身を除く): 15722066

約数列:

[1, 2, 7, 14, 31, 62, 67, 134, 217, 434, 469, 677, 938, 1354, 2077, 4154, 4739, 9478, 14539, 20987, 29078, 41974, 45359, 90718, 146909, 293818, 317513, 635026, 1406129, 2812258, 9842903, 19685806]

約数ペア:

[(1, 19685806), (2, 9842903), (7, 2812258), (14, 1406129), (31, 635026), (62, 317513), (67, 293818), (134, 146909), (217, 90718), (434, 45359), (469, 41974), (677, 29078), (938, 20987), (1354, 14539), (2077, 9478), (4154, 4739)]