21327728

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{70157}}^1$

素因数の和:70184

約数の個数: 20

約数和(自身を含む): 43497960

約数和(自身を除く): 22170232

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 70157, 140314, 280628, 561256, 1122512, 1332983, 2665966, 5331932, 10663864, 21327728]

約数ペア:

[(1, 21327728), (2, 10663864), (4, 5331932), (8, 2665966), (16, 1332983), (19, 1122512), (38, 561256), (76, 280628), (152, 140314), (304, 70157)]