19892638

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{4519}}^1$

素因数の和:4623

約数の個数: 16

約数和(自身を含む): 31242240

約数和(自身を除く): 11349602

約数列:

[1, 2, 31, 62, 71, 142, 2201, 4402, 4519, 9038, 140089, 280178, 320849, 641698, 9946319, 19892638]

約数ペア:

[(1, 19892638), (2, 9946319), (31, 641698), (62, 320849), (71, 280178), (142, 140089), (2201, 9038), (4402, 4519)]