19485808

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1009}}^1$

素因数の和:1105

約数の個数: 40

約数和(自身を含む): 40577760

約数和(自身を除く): 21091952

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 71, 136, 142, 272, 284, 568, 1009, 1136, 1207, 2018, 2414, 4036, 4828, 8072, 9656, 16144, 17153, 19312, 34306, 68612, 71639, 137224, 143278, 274448, 286556, 573112, 1146224, 1217863, 2435726, 4871452, 9742904, 19485808]

約数ペア:

[(1, 19485808), (2, 9742904), (4, 4871452), (8, 2435726), (16, 1217863), (17, 1146224), (34, 573112), (68, 286556), (71, 274448), (136, 143278), (142, 137224), (272, 71639), (284, 68612), (568, 34306), (1009, 19312), (1136, 17153), (1207, 16144), (2018, 9656), (2414, 8072), (4036, 4828)]