21078296

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{101}}^1\times {\mathrm{1373}}^1$

素因数の和:1499

約数の個数: 32

約数和(自身を含む): 42044400

約数和(自身を除く): 20966104

約数列:

[1, 2, 4, 8, 19, 38, 76, 101, 152, 202, 404, 808, 1373, 1919, 2746, 3838, 5492, 7676, 10984, 15352, 26087, 52174, 104348, 138673, 208696, 277346, 554692, 1109384, 2634787, 5269574, 10539148, 21078296]

約数ペア:

[(1, 21078296), (2, 10539148), (4, 5269574), (8, 2634787), (19, 1109384), (38, 554692), (76, 277346), (101, 208696), (152, 138673), (202, 104348), (404, 52174), (808, 26087), (1373, 15352), (1919, 10984), (2746, 7676), (3838, 5492)]