21084564385

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{389}}^1\times {\mathrm{570547}}^1$

素因数の和:570960

約数の個数: 16

約数和(自身を含む): 26701646400

約数和(自身を除く): 5617082015

約数列:

[1, 5, 19, 95, 389, 1945, 7391, 36955, 570547, 2852735, 10840393, 54201965, 221942783, 1109713915, 4216912877, 21084564385]

約数ペア:

[(1, 21084564385), (5, 4216912877), (19, 1109713915), (95, 221942783), (389, 54201965), (1945, 10840393), (7391, 2852735), (36955, 570547)]