71398257

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{1409}}^1$

素因数の和:1565

約数の個数: 32

約数和(自身を含む): 115507200

約数和(自身を除く): 44108943

約数列:

[1, 3, 7, 19, 21, 57, 127, 133, 381, 399, 889, 1409, 2413, 2667, 4227, 7239, 9863, 16891, 26771, 29589, 50673, 80313, 178943, 187397, 536829, 562191, 1252601, 3399917, 3757803, 10199751, 23799419, 71398257]

約数ペア:

[(1, 71398257), (3, 23799419), (7, 10199751), (19, 3757803), (21, 3399917), (57, 1252601), (127, 562191), (133, 536829), (381, 187397), (399, 178943), (889, 80313), (1409, 50673), (2413, 29589), (2667, 26771), (4227, 16891), (7239, 9863)]