21234220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{151673}}^1$

素因数の和:151689

約数の個数: 24

約数和(自身を含む): 50962464

約数和(自身を除く): 29728244

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 151673, 303346, 606692, 758365, 1061711, 1516730, 2123422, 3033460, 4246844, 5308555, 10617110, 21234220]

約数ペア:

[(1, 21234220), (2, 10617110), (4, 5308555), (5, 4246844), (7, 3033460), (10, 2123422), (14, 1516730), (20, 1061711), (28, 758365), (35, 606692), (70, 303346), (140, 151673)]