2161984444

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{383}}^1\times {\mathrm{887}}^1$

素因数の和:1354

約数の個数: 48

約数和(自身を含む): 3990970368

約数和(自身を除く): 1828985924

約数列:

[1, 2, 4, 37, 43, 74, 86, 148, 172, 383, 766, 887, 1532, 1591, 1774, 3182, 3548, 6364, 14171, 16469, 28342, 32819, 32938, 38141, 56684, 65638, 65876, 76282, 131276, 152564, 339721, 609353, 679442, 1218706, 1358884, 1411217, 2437412, 2822434, 5644868, 12569677, 14608003, 25139354, 29216006, 50278708, 58432012, 540496111, 1080992222, 2161984444]

約数ペア:

[(1, 2161984444), (2, 1080992222), (4, 540496111), (37, 58432012), (43, 50278708), (74, 29216006), (86, 25139354), (148, 14608003), (172, 12569677), (383, 5644868), (766, 2822434), (887, 2437412), (1532, 1411217), (1591, 1358884), (1774, 1218706), (3182, 679442), (3548, 609353), (6364, 339721), (14171, 152564), (16469, 131276), (28342, 76282), (32819, 65876), (32938, 65638), (38141, 56684)]