19997412

素因数分解:

$2^2\times 3^1\times {\mathrm{131}}^1\times {\mathrm{12721}}^1$

素因数の和:12859

約数の個数: 24

約数和(自身を含む): 47020512

約数和(自身を除く): 27023100

約数列:

[1, 2, 3, 4, 6, 12, 131, 262, 393, 524, 786, 1572, 12721, 25442, 38163, 50884, 76326, 152652, 1666451, 3332902, 4999353, 6665804, 9998706, 19997412]

約数ペア:

[(1, 19997412), (2, 9998706), (3, 6665804), (4, 4999353), (6, 3332902), (12, 1666451), (131, 152652), (262, 76326), (393, 50884), (524, 38163), (786, 25442), (1572, 12721)]