20506838

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{101}}^1\times {\mathrm{839}}^1$

素因数の和:964

約数の個数: 24

約数和(自身を含む): 34186320

約数和(自身を除く): 13679482

約数列:

[1, 2, 11, 22, 101, 121, 202, 242, 839, 1111, 1678, 2222, 9229, 12221, 18458, 24442, 84739, 101519, 169478, 203038, 932129, 1864258, 10253419, 20506838]

約数ペア:

[(1, 20506838), (2, 10253419), (11, 1864258), (22, 932129), (101, 203038), (121, 169478), (202, 101519), (242, 84739), (839, 24442), (1111, 18458), (1678, 12221), (2222, 9229)]