221640304

素因数分解:

$2^4\times {\mathrm{1109}}^1\times {\mathrm{12491}}^1$

素因数の和:13608

約数の個数: 20

約数和(自身を含む): 429849720

約数和(自身を除く): 208209416

約数列:

[1, 2, 4, 8, 16, 1109, 2218, 4436, 8872, 12491, 17744, 24982, 49964, 99928, 199856, 13852519, 27705038, 55410076, 110820152, 221640304]

約数ペア:

[(1, 221640304), (2, 110820152), (4, 55410076), (8, 27705038), (16, 13852519), (1109, 199856), (2218, 99928), (4436, 49964), (8872, 24982), (12491, 17744)]