21354406

素因数分解:

$2^1\times {\mathrm{83}}^1\times {\mathrm{197}}^1\times {\mathrm{653}}^1$

素因数の和:935

約数の個数: 16

約数和(自身を含む): 32631984

約数和(自身を除く): 11277578

約数列:

[1, 2, 83, 166, 197, 394, 653, 1306, 16351, 32702, 54199, 108398, 128641, 257282, 10677203, 21354406]

約数ペア:

[(1, 21354406), (2, 10677203), (83, 257282), (166, 128641), (197, 108398), (394, 54199), (653, 32702), (1306, 16351)]