171909199

素因数分解:

$7^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{283}}^1$

素因数の和:345

約数の個数: 40

約数和(自身を含む): 229099392

約数和(自身を除く): 57190193

約数列:

[1, 7, 11, 23, 49, 77, 161, 253, 283, 343, 539, 1127, 1771, 1981, 2401, 3113, 3773, 6509, 7889, 12397, 13867, 21791, 26411, 45563, 55223, 71599, 86779, 97069, 152537, 318941, 501193, 607453, 679483, 1067759, 2232587, 3508351, 7474313, 15628109, 24558457, 171909199]

約数ペア:

[(1, 171909199), (7, 24558457), (11, 15628109), (23, 7474313), (49, 3508351), (77, 2232587), (161, 1067759), (253, 679483), (283, 607453), (343, 501193), (539, 318941), (1127, 152537), (1771, 97069), (1981, 86779), (2401, 71599), (3113, 55223), (3773, 45563), (6509, 26411), (7889, 21791), (12397, 13867)]