19746460

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{22961}}^1$

素因数の和:23013

約数の個数: 24

約数和(自身を含む): 42433776

約数和(自身を除く): 22687316

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 22961, 45922, 91844, 114805, 229610, 459220, 987323, 1974646, 3949292, 4936615, 9873230, 19746460]

約数ペア:

[(1, 19746460), (2, 9873230), (4, 4936615), (5, 3949292), (10, 1974646), (20, 987323), (43, 459220), (86, 229610), (172, 114805), (215, 91844), (430, 45922), (860, 22961)]