20889918

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{5717}}^1$

素因数の和:5761

約数の個数: 48

約数和(自身を含む): 53520480

約数和(自身を除く): 32630562

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 29, 42, 58, 63, 87, 126, 174, 203, 261, 406, 522, 609, 1218, 1827, 3654, 5717, 11434, 17151, 34302, 40019, 51453, 80038, 102906, 120057, 165793, 240114, 331586, 360171, 497379, 720342, 994758, 1160551, 1492137, 2321102, 2984274, 3481653, 6963306, 10444959, 20889918]

約数ペア:

[(1, 20889918), (2, 10444959), (3, 6963306), (6, 3481653), (7, 2984274), (9, 2321102), (14, 1492137), (18, 1160551), (21, 994758), (29, 720342), (42, 497379), (58, 360171), (63, 331586), (87, 240114), (126, 165793), (174, 120057), (203, 102906), (261, 80038), (406, 51453), (522, 40019), (609, 34302), (1218, 17151), (1827, 11434), (3654, 5717)]