21653776

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{10331}}^1$

素因数の和:10470

約数の個数: 20

約数和(自身を含む): 42278544

約数和(自身を除く): 20624768

約数列:

[1, 2, 4, 8, 16, 131, 262, 524, 1048, 2096, 10331, 20662, 41324, 82648, 165296, 1353361, 2706722, 5413444, 10826888, 21653776]

約数ペア:

[(1, 21653776), (2, 10826888), (4, 5413444), (8, 2706722), (16, 1353361), (131, 165296), (262, 82648), (524, 41324), (1048, 20662), (2096, 10331)]