21426224

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{70481}}^1$

素因数の和:70508

約数の個数: 20

約数和(自身を含む): 43698840

約数和(自身を除く): 22272616

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 70481, 140962, 281924, 563848, 1127696, 1339139, 2678278, 5356556, 10713112, 21426224]

約数ペア:

[(1, 21426224), (2, 10713112), (4, 5356556), (8, 2678278), (16, 1339139), (19, 1127696), (38, 563848), (76, 281924), (152, 140962), (304, 70481)]