19401886

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{149}}^1$

素因数の和:360

約数の個数: 32

約数和(自身を含む): 34214400

約数和(自身を除く): 14812514

約数列:

[1, 2, 7, 14, 71, 131, 142, 149, 262, 298, 497, 917, 994, 1043, 1834, 2086, 9301, 10579, 18602, 19519, 21158, 39038, 65107, 74053, 130214, 136633, 148106, 273266, 1385849, 2771698, 9700943, 19401886]

約数ペア:

[(1, 19401886), (2, 9700943), (7, 2771698), (14, 1385849), (71, 273266), (131, 148106), (142, 136633), (149, 130214), (262, 74053), (298, 65107), (497, 39038), (917, 21158), (994, 19519), (1043, 18602), (1834, 10579), (2086, 9301)]