19901854

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{3253}}^1$

素因数の和:3304

約数の個数: 32

約数和(自身を含む): 37486080

約数和(自身を除く): 17584226

約数列:

[1, 2, 7, 14, 19, 23, 38, 46, 133, 161, 266, 322, 437, 874, 3059, 3253, 6118, 6506, 22771, 45542, 61807, 74819, 123614, 149638, 432649, 523733, 865298, 1047466, 1421561, 2843122, 9950927, 19901854]

約数ペア:

[(1, 19901854), (2, 9950927), (7, 2843122), (14, 1421561), (19, 1047466), (23, 865298), (38, 523733), (46, 432649), (133, 149638), (161, 123614), (266, 74819), (322, 61807), (437, 45542), (874, 22771), (3059, 6506), (3253, 6118)]