21108164

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{3607}}^1$

素因数の和:3648

約数の個数: 48

約数和(自身を含む): 48491520

約数和(自身を除く): 27383356

約数列:

[1, 2, 4, 7, 11, 14, 19, 22, 28, 38, 44, 76, 77, 133, 154, 209, 266, 308, 418, 532, 836, 1463, 2926, 3607, 5852, 7214, 14428, 25249, 39677, 50498, 68533, 79354, 100996, 137066, 158708, 274132, 277739, 479731, 555478, 753863, 959462, 1110956, 1507726, 1918924, 3015452, 5277041, 10554082, 21108164]

約数ペア:

[(1, 21108164), (2, 10554082), (4, 5277041), (7, 3015452), (11, 1918924), (14, 1507726), (19, 1110956), (22, 959462), (28, 753863), (38, 555478), (44, 479731), (76, 277739), (77, 274132), (133, 158708), (154, 137066), (209, 100996), (266, 79354), (308, 68533), (418, 50498), (532, 39677), (836, 25249), (1463, 14428), (2926, 7214), (3607, 5852)]