221287972

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{21059}}^1$

素因数の和:21171

約数の個数: 24

約数和(自身を含む): 403341120

約数和(自身を除く): 182053148

約数列:

[1, 2, 4, 37, 71, 74, 142, 148, 284, 2627, 5254, 10508, 21059, 42118, 84236, 779183, 1495189, 1558366, 2990378, 3116732, 5980756, 55321993, 110643986, 221287972]

約数ペア:

[(1, 221287972), (2, 110643986), (4, 55321993), (37, 5980756), (71, 3116732), (74, 2990378), (142, 1558366), (148, 1495189), (284, 779183), (2627, 84236), (5254, 42118), (10508, 21059)]