21410416

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{70429}}^1$

素因数の和:70456

約数の個数: 20

約数和(自身を含む): 43666600

約数和(自身を除く): 22256184

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 70429, 140858, 281716, 563432, 1126864, 1338151, 2676302, 5352604, 10705208, 21410416]

約数ペア:

[(1, 21410416), (2, 10705208), (4, 5352604), (8, 2676302), (16, 1338151), (19, 1126864), (38, 563432), (76, 281716), (152, 140858), (304, 70429)]