20823236

素因数分解:

$2^2\times 7^2\times {\mathrm{131}}^1\times {\mathrm{811}}^1$

素因数の和:960

約数の個数: 36

約数和(自身を含む): 42766416

約数和(自身を除く): 21943180

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 131, 196, 262, 524, 811, 917, 1622, 1834, 3244, 3668, 5677, 6419, 11354, 12838, 22708, 25676, 39739, 79478, 106241, 158956, 212482, 424964, 743687, 1487374, 2974748, 5205809, 10411618, 20823236]

約数ペア:

[(1, 20823236), (2, 10411618), (4, 5205809), (7, 2974748), (14, 1487374), (28, 743687), (49, 424964), (98, 212482), (131, 158956), (196, 106241), (262, 79478), (524, 39739), (811, 25676), (917, 22708), (1622, 12838), (1834, 11354), (3244, 6419), (3668, 5677)]