20556898

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{173}}^1$

素因数の和:306

約数の個数: 32

約数和(自身を含む): 33825600

約数和(自身を除く): 13268702

約数列:

[1, 2, 19, 38, 53, 59, 106, 118, 173, 346, 1007, 1121, 2014, 2242, 3127, 3287, 6254, 6574, 9169, 10207, 18338, 20414, 59413, 118826, 174211, 193933, 348422, 387866, 540971, 1081942, 10278449, 20556898]

約数ペア:

[(1, 20556898), (2, 10278449), (19, 1081942), (38, 540971), (53, 387866), (59, 348422), (106, 193933), (118, 174211), (173, 118826), (346, 59413), (1007, 20414), (1121, 18338), (2014, 10207), (2242, 9169), (3127, 6574), (3287, 6254)]