21956116

素因数分解:

$2^2\times 7^3\times {\mathrm{13}}^1\times {\mathrm{1231}}^1$

素因数の和:1269

約数の個数: 48

約数和(自身を含む): 48294400

約数和(自身を除く): 26338284

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 182, 196, 343, 364, 637, 686, 1231, 1274, 1372, 2462, 2548, 4459, 4924, 8617, 8918, 16003, 17234, 17836, 32006, 34468, 60319, 64012, 112021, 120638, 224042, 241276, 422233, 448084, 784147, 844466, 1568294, 1688932, 3136588, 5489029, 10978058, 21956116]

約数ペア:

[(1, 21956116), (2, 10978058), (4, 5489029), (7, 3136588), (13, 1688932), (14, 1568294), (26, 844466), (28, 784147), (49, 448084), (52, 422233), (91, 241276), (98, 224042), (182, 120638), (196, 112021), (343, 64012), (364, 60319), (637, 34468), (686, 32006), (1231, 17836), (1274, 17234), (1372, 16003), (2462, 8918), (2548, 8617), (4459, 4924)]