21352660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{152519}}^1$

素因数の和:152535

約数の個数: 24

約数和(自身を含む): 51246720

約数和(自身を除く): 29894060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 152519, 305038, 610076, 762595, 1067633, 1525190, 2135266, 3050380, 4270532, 5338165, 10676330, 21352660]

約数ペア:

[(1, 21352660), (2, 10676330), (4, 5338165), (5, 4270532), (7, 3050380), (10, 2135266), (14, 1525190), (20, 1067633), (28, 762595), (35, 610076), (70, 305038), (140, 152519)]