20017291415

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{251}}^1\times {\mathrm{33721}}^1$

素因数の和:34031

約数の個数: 32

約数和(自身を含む): 26921486592

約数和(自身を除く): 6904195177

約数列:

[1, 5, 11, 43, 55, 215, 251, 473, 1255, 2365, 2761, 10793, 13805, 33721, 53965, 118723, 168605, 370931, 593615, 1450003, 1854655, 7250015, 8463971, 15950033, 42319855, 79750165, 93103681, 363950753, 465518405, 1819753765, 4003458283, 20017291415]

約数ペア:

[(1, 20017291415), (5, 4003458283), (11, 1819753765), (43, 465518405), (55, 363950753), (215, 93103681), (251, 79750165), (473, 42319855), (1255, 15950033), (2365, 8463971), (2761, 7250015), (10793, 1854655), (13805, 1450003), (33721, 593615), (53965, 370931), (118723, 168605)]