18965037

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{547}}^1$

素因数の和:697

約数の個数: 32

約数和(自身を含む): 31424512

約数和(自身を除く): 12459475

約数列:

[1, 3, 7, 13, 21, 39, 91, 127, 273, 381, 547, 889, 1641, 1651, 2667, 3829, 4953, 7111, 11487, 11557, 21333, 34671, 49777, 69469, 149331, 208407, 486283, 903097, 1458849, 2709291, 6321679, 18965037]

約数ペア:

[(1, 18965037), (3, 6321679), (7, 2709291), (13, 1458849), (21, 903097), (39, 486283), (91, 208407), (127, 149331), (273, 69469), (381, 49777), (547, 34671), (889, 21333), (1641, 11557), (1651, 11487), (2667, 7111), (3829, 4953)]