20973872

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{68993}}^1$

素因数の和:69020

約数の個数: 20

約数和(自身を含む): 42776280

約数和(自身を除く): 21802408

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 68993, 137986, 275972, 551944, 1103888, 1310867, 2621734, 5243468, 10486936, 20973872]

約数ペア:

[(1, 20973872), (2, 10486936), (4, 5243468), (8, 2621734), (16, 1310867), (19, 1103888), (38, 551944), (76, 275972), (152, 137986), (304, 68993)]