2781638

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{1031}}^1$

素因数の和:1123

約数の個数: 16

約数和(自身を含む): 4458240

約数和(自身を除く): 1676602

約数列:

[1, 2, 19, 38, 71, 142, 1031, 1349, 2062, 2698, 19589, 39178, 73201, 146402, 1390819, 2781638]

約数ペア:

[(1, 2781638), (2, 1390819), (19, 146402), (38, 73201), (71, 39178), (142, 19589), (1031, 2698), (1349, 2062)]