20571661551

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{1759}}^1\times {\mathrm{29311}}^1$

素因数の和:31099

約数の個数: 32

約数和(自身を含む): 33017036800

約数和(自身を除く): 12445375249

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 1759, 5277, 12313, 29311, 33421, 36939, 87933, 100263, 205177, 233947, 556909, 615531, 701841, 1670727, 3898363, 11695089, 51558049, 154674147, 360906343, 979602931, 1082719029, 2938808793, 6857220517, 20571661551]

約数ペア:

[(1, 20571661551), (3, 6857220517), (7, 2938808793), (19, 1082719029), (21, 979602931), (57, 360906343), (133, 154674147), (399, 51558049), (1759, 11695089), (5277, 3898363), (12313, 1670727), (29311, 701841), (33421, 615531), (36939, 556909), (87933, 233947), (100263, 205177)]