21345550

素因数分解:

$2^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{22469}}^1$

素因数の和:22500

約数の個数: 24

約数和(自身を含む): 41794200

約数和(自身を除く): 20448650

約数列:

[1, 2, 5, 10, 19, 25, 38, 50, 95, 190, 475, 950, 22469, 44938, 112345, 224690, 426911, 561725, 853822, 1123450, 2134555, 4269110, 10672775, 21345550]

約数ペア:

[(1, 21345550), (2, 10672775), (5, 4269110), (10, 2134555), (19, 1123450), (25, 853822), (38, 561725), (50, 426911), (95, 224690), (190, 112345), (475, 44938), (950, 22469)]