21431110

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{167}}^1\times {\mathrm{313}}^1$

素因数の和:528

約数の個数: 32

約数和(自身を含む): 39880512

約数和(自身を除く): 18449402

約数列:

[1, 2, 5, 10, 41, 82, 167, 205, 313, 334, 410, 626, 835, 1565, 1670, 3130, 6847, 12833, 13694, 25666, 34235, 52271, 64165, 68470, 104542, 128330, 261355, 522710, 2143111, 4286222, 10715555, 21431110]

約数ペア:

[(1, 21431110), (2, 10715555), (5, 4286222), (10, 2143111), (41, 522710), (82, 261355), (167, 128330), (205, 104542), (313, 68470), (334, 64165), (410, 52271), (626, 34235), (835, 25666), (1565, 13694), (1670, 12833), (3130, 6847)]