21443570

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1$

素因数の和:410

約数の個数: 32

約数和(自身を含む): 39536640

約数和(自身を除く): 18093070

約数列:

[1, 2, 5, 10, 103, 109, 191, 206, 218, 382, 515, 545, 955, 1030, 1090, 1910, 11227, 19673, 20819, 22454, 39346, 41638, 56135, 98365, 104095, 112270, 196730, 208190, 2144357, 4288714, 10721785, 21443570]

約数ペア:

[(1, 21443570), (2, 10721785), (5, 4288714), (10, 2144357), (103, 208190), (109, 196730), (191, 112270), (206, 104095), (218, 98365), (382, 56135), (515, 41638), (545, 39346), (955, 22454), (1030, 20819), (1090, 19673), (1910, 11227)]