221561216

素因数分解:

$2^7\times {\mathrm{31}}^1\times {\mathrm{55837}}^1$

素因数の和:55882

約数の個数: 32

約数和(自身を含む): 455638080

約数和(自身を除く): 234076864

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 496, 992, 1984, 3968, 55837, 111674, 223348, 446696, 893392, 1730947, 1786784, 3461894, 3573568, 6923788, 7147136, 13847576, 27695152, 55390304, 110780608, 221561216]

約数ペア:

[(1, 221561216), (2, 110780608), (4, 55390304), (8, 27695152), (16, 13847576), (31, 7147136), (32, 6923788), (62, 3573568), (64, 3461894), (124, 1786784), (128, 1730947), (248, 893392), (496, 446696), (992, 223348), (1984, 111674), (3968, 55837)]