21841015

素因数分解:

$5^1\times 7^2\times {\mathrm{239}}^1\times {\mathrm{373}}^1$

素因数の和:631

約数の個数: 24

約数和(自身を含む): 30697920

約数和(自身を除く): 8856905

約数列:

[1, 5, 7, 35, 49, 239, 245, 373, 1195, 1673, 1865, 2611, 8365, 11711, 13055, 18277, 58555, 89147, 91385, 445735, 624029, 3120145, 4368203, 21841015]

約数ペア:

[(1, 21841015), (5, 4368203), (7, 3120145), (35, 624029), (49, 445735), (239, 91385), (245, 89147), (373, 58555), (1195, 18277), (1673, 13055), (1865, 11711), (2611, 8365)]