20218828

素因数分解:

$2^2\times 7^1\times {\mathrm{59}}^1\times {\mathrm{12239}}^1$

素因数の和:12309

約数の個数: 24

約数和(自身を含む): 41126400

約数和(自身を除く): 20907572

約数列:

[1, 2, 4, 7, 14, 28, 59, 118, 236, 413, 826, 1652, 12239, 24478, 48956, 85673, 171346, 342692, 722101, 1444202, 2888404, 5054707, 10109414, 20218828]

約数ペア:

[(1, 20218828), (2, 10109414), (4, 5054707), (7, 2888404), (14, 1444202), (28, 722101), (59, 342692), (118, 171346), (236, 85673), (413, 48956), (826, 24478), (1652, 12239)]