21196412

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{727}}^1$

素因数の和:965

約数の個数: 24

約数和(自身を含む): 38342304

約数和(自身を除く): 17145892

約数列:

[1, 2, 4, 37, 74, 148, 197, 394, 727, 788, 1454, 2908, 7289, 14578, 26899, 29156, 53798, 107596, 143219, 286438, 572876, 5299103, 10598206, 21196412]

約数ペア:

[(1, 21196412), (2, 10598206), (4, 5299103), (37, 572876), (74, 286438), (148, 143219), (197, 107596), (394, 53798), (727, 29156), (788, 26899), (1454, 14578), (2908, 7289)]