21368456

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{3343}}^1$

素因数の和:3413

約数の個数: 32

約数和(自身を含む): 43338240

約数和(自身を除く): 21969784

約数列:

[1, 2, 4, 8, 17, 34, 47, 68, 94, 136, 188, 376, 799, 1598, 3196, 3343, 6392, 6686, 13372, 26744, 56831, 113662, 157121, 227324, 314242, 454648, 628484, 1256968, 2671057, 5342114, 10684228, 21368456]

約数ペア:

[(1, 21368456), (2, 10684228), (4, 5342114), (8, 2671057), (17, 1256968), (34, 628484), (47, 454648), (68, 314242), (94, 227324), (136, 157121), (188, 113662), (376, 56831), (799, 26744), (1598, 13372), (3196, 6686), (3343, 6392)]