21383970

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{163}}^1\times {\mathrm{4373}}^1$

素因数の和:4546

約数の個数: 32

約数和(自身を含む): 51648192

約数和(自身を除く): 30264222

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 163, 326, 489, 815, 978, 1630, 2445, 4373, 4890, 8746, 13119, 21865, 26238, 43730, 65595, 131190, 712799, 1425598, 2138397, 3563995, 4276794, 7127990, 10691985, 21383970]

約数ペア:

[(1, 21383970), (2, 10691985), (3, 7127990), (5, 4276794), (6, 3563995), (10, 2138397), (15, 1425598), (30, 712799), (163, 131190), (326, 65595), (489, 43730), (815, 26238), (978, 21865), (1630, 13119), (2445, 8746), (4373, 4890)]