21087490

素因数分解:

$2^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{44867}}^1$

素因数の和:44921

約数の個数: 16

約数和(自身を含む): 38765952

約数和(自身を除く): 17678462

約数列:

[1, 2, 5, 10, 47, 94, 235, 470, 44867, 89734, 224335, 448670, 2108749, 4217498, 10543745, 21087490]

約数ペア:

[(1, 21087490), (2, 10543745), (5, 4217498), (10, 2108749), (47, 448670), (94, 224335), (235, 89734), (470, 44867)]