19994038

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:276

約数の個数: 32

約数和(自身を含む): 32659200

約数和(自身を除く): 12665162

約数列:

[1, 2, 23, 46, 53, 59, 106, 118, 139, 278, 1219, 1357, 2438, 2714, 3127, 3197, 6254, 6394, 7367, 8201, 14734, 16402, 71921, 143842, 169441, 188623, 338882, 377246, 434653, 869306, 9997019, 19994038]

約数ペア:

[(1, 19994038), (2, 9997019), (23, 869306), (46, 434653), (53, 377246), (59, 338882), (106, 188623), (118, 169441), (139, 143842), (278, 71921), (1219, 16402), (1357, 14734), (2438, 8201), (2714, 7367), (3127, 6394), (3197, 6254)]