16915899

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1$

素因数の和:208

約数の個数: 64

約数和(自身を含む): 31223808

約数和(自身を除く): 14307909

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 43, 77, 91, 129, 131, 143, 231, 273, 301, 393, 429, 473, 559, 903, 917, 1001, 1419, 1441, 1677, 1703, 2751, 3003, 3311, 3913, 4323, 5109, 5633, 6149, 9933, 10087, 11739, 11921, 16899, 18447, 18733, 30261, 35763, 39431, 43043, 56199, 61963, 73229, 118293, 129129, 131131, 185889, 219687, 393393, 433741, 512603, 805519, 1301223, 1537809, 2416557, 5638633, 16915899]

約数ペア:

[(1, 16915899), (3, 5638633), (7, 2416557), (11, 1537809), (13, 1301223), (21, 805519), (33, 512603), (39, 433741), (43, 393393), (77, 219687), (91, 185889), (129, 131131), (131, 129129), (143, 118293), (231, 73229), (273, 61963), (301, 56199), (393, 43043), (429, 39431), (473, 35763), (559, 30261), (903, 18733), (917, 18447), (1001, 16899), (1419, 11921), (1441, 11739), (1677, 10087), (1703, 9933), (2751, 6149), (3003, 5633), (3311, 5109), (3913, 4323)]