21519632

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{10267}}^1$

素因数の和:10406

約数の個数: 20

約数和(自身を含む): 42016656

約数和(自身を除く): 20497024

約数列:

[1, 2, 4, 8, 16, 131, 262, 524, 1048, 2096, 10267, 20534, 41068, 82136, 164272, 1344977, 2689954, 5379908, 10759816, 21519632]

約数ペア:

[(1, 21519632), (2, 10759816), (4, 5379908), (8, 2689954), (16, 1344977), (131, 164272), (262, 82136), (524, 41068), (1048, 20534), (2096, 10267)]