19665128

素因数分解:

$2^3\times 7^1\times {\mathrm{433}}^1\times {\mathrm{811}}^1$

素因数の和:1257

約数の個数: 32

約数和(自身を含む): 42288960

約数和(自身を除く): 22623832

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 433, 811, 866, 1622, 1732, 3031, 3244, 3464, 5677, 6062, 6488, 11354, 12124, 22708, 24248, 45416, 351163, 702326, 1404652, 2458141, 2809304, 4916282, 9832564, 19665128]

約数ペア:

[(1, 19665128), (2, 9832564), (4, 4916282), (7, 2809304), (8, 2458141), (14, 1404652), (28, 702326), (56, 351163), (433, 45416), (811, 24248), (866, 22708), (1622, 12124), (1732, 11354), (3031, 6488), (3244, 6062), (3464, 5677)]