20864998

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{109}}^1\times {\mathrm{113}}^1$

素因数の和:253

約数の個数: 48

約数和(自身を含む): 40027680

約数和(自身を除く): 19162682

約数列:

[1, 2, 7, 11, 14, 22, 77, 109, 113, 121, 154, 218, 226, 242, 763, 791, 847, 1199, 1243, 1526, 1582, 1694, 2398, 2486, 8393, 8701, 12317, 13189, 13673, 16786, 17402, 24634, 26378, 27346, 86219, 92323, 95711, 135487, 172438, 184646, 191422, 270974, 948409, 1490357, 1896818, 2980714, 10432499, 20864998]

約数ペア:

[(1, 20864998), (2, 10432499), (7, 2980714), (11, 1896818), (14, 1490357), (22, 948409), (77, 270974), (109, 191422), (113, 184646), (121, 172438), (154, 135487), (218, 95711), (226, 92323), (242, 86219), (763, 27346), (791, 26378), (847, 24634), (1199, 17402), (1243, 16786), (1526, 13673), (1582, 13189), (1694, 12317), (2398, 8701), (2486, 8393)]