19887364

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{30881}}^1$

素因数の和:30915

約数の個数: 24

約数和(自身を含む): 41505408

約数和(自身を除く): 21618044

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 30881, 61762, 123524, 216167, 432334, 710263, 864668, 1420526, 2841052, 4971841, 9943682, 19887364]

約数ペア:

[(1, 19887364), (2, 9943682), (4, 4971841), (7, 2841052), (14, 1420526), (23, 864668), (28, 710263), (46, 432334), (92, 216167), (161, 123524), (322, 61762), (644, 30881)]