21896156

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{197}}^1\times {\mathrm{751}}^1$

素因数の和:989

約数の個数: 24

約数和(自身を含む): 39606336

約数和(自身を除く): 17710180

約数列:

[1, 2, 4, 37, 74, 148, 197, 394, 751, 788, 1502, 3004, 7289, 14578, 27787, 29156, 55574, 111148, 147947, 295894, 591788, 5474039, 10948078, 21896156]

約数ペア:

[(1, 21896156), (2, 10948078), (4, 5474039), (37, 591788), (74, 295894), (148, 147947), (197, 111148), (394, 55574), (751, 29156), (788, 27787), (1502, 14578), (3004, 7289)]