21330386

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{421}}^1$

素因数の和:495

約数の個数: 48

約数和(自身を含む): 41565312

約数和(自身を除く): 20234926

約数列:

[1, 2, 7, 11, 14, 22, 47, 49, 77, 94, 98, 154, 329, 421, 517, 539, 658, 842, 1034, 1078, 2303, 2947, 3619, 4606, 4631, 5894, 7238, 9262, 19787, 20629, 25333, 32417, 39574, 41258, 50666, 64834, 138509, 217657, 226919, 277018, 435314, 453838, 969563, 1523599, 1939126, 3047198, 10665193, 21330386]

約数ペア:

[(1, 21330386), (2, 10665193), (7, 3047198), (11, 1939126), (14, 1523599), (22, 969563), (47, 453838), (49, 435314), (77, 277018), (94, 226919), (98, 217657), (154, 138509), (329, 64834), (421, 50666), (517, 41258), (539, 39574), (658, 32417), (842, 25333), (1034, 20629), (1078, 19787), (2303, 9262), (2947, 7238), (3619, 5894), (4606, 4631)]