20874196

素因数分解:

$2^2\times 7^2\times {\mathrm{106501}}^1$

素因数の和:106519

約数の個数: 18

約数和(自身を含む): 42494298

約数和(自身を除く): 21620102

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 106501, 213002, 426004, 745507, 1491014, 2982028, 5218549, 10437098, 20874196]

約数ペア:

[(1, 20874196), (2, 10437098), (4, 5218549), (7, 2982028), (14, 1491014), (28, 745507), (49, 426004), (98, 213002), (196, 106501)]