20819696

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{76543}}^1$

素因数の和:76568

約数の個数: 20

約数和(自身を含む): 42711552

約数和(自身を除く): 21891856

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 76543, 153086, 306172, 612344, 1224688, 1301231, 2602462, 5204924, 10409848, 20819696]

約数ペア:

[(1, 20819696), (2, 10409848), (4, 5204924), (8, 2602462), (16, 1301231), (17, 1224688), (34, 612344), (68, 306172), (136, 153086), (272, 76543)]