17911738

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{313}}^1$

素因数の和:430

約数の個数: 32

約数和(自身を含む): 30385152

約数和(自身を除く): 12473414

約数列:

[1, 2, 13, 26, 31, 62, 71, 142, 313, 403, 626, 806, 923, 1846, 2201, 4069, 4402, 8138, 9703, 19406, 22223, 28613, 44446, 57226, 126139, 252278, 288899, 577798, 688913, 1377826, 8955869, 17911738]

約数ペア:

[(1, 17911738), (2, 8955869), (13, 1377826), (26, 688913), (31, 577798), (62, 288899), (71, 252278), (142, 126139), (313, 57226), (403, 44446), (626, 28613), (806, 22223), (923, 19406), (1846, 9703), (2201, 8138), (4069, 4402)]