16263460

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{18911}}^1$

素因数の和:18963

約数の個数: 24

約数和(自身を含む): 34949376

約数和(自身を除く): 18685916

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 18911, 37822, 75644, 94555, 189110, 378220, 813173, 1626346, 3252692, 4065865, 8131730, 16263460]

約数ペア:

[(1, 16263460), (2, 8131730), (4, 4065865), (5, 3252692), (10, 1626346), (20, 813173), (43, 378220), (86, 189110), (172, 94555), (215, 75644), (430, 37822), (860, 18911)]