21154676

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{7523}}^1$

素因数の和:7583

約数の個数: 24

約数和(自身を含む): 40027680

約数和(自身を除く): 18873004

約数列:

[1, 2, 4, 19, 37, 38, 74, 76, 148, 703, 1406, 2812, 7523, 15046, 30092, 142937, 278351, 285874, 556702, 571748, 1113404, 5288669, 10577338, 21154676]

約数ペア:

[(1, 21154676), (2, 10577338), (4, 5288669), (19, 1113404), (37, 571748), (38, 556702), (74, 285874), (76, 278351), (148, 142937), (703, 30092), (1406, 15046), (2812, 7523)]