16988868

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{1171}}^1$

素因数の和:1225

約数の個数: 72

約数和(自身を含む): 47780096

約数和(自身を除く): 30791228

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 31, 36, 39, 52, 62, 78, 93, 117, 124, 156, 186, 234, 279, 372, 403, 468, 558, 806, 1116, 1171, 1209, 1612, 2342, 2418, 3513, 3627, 4684, 4836, 7026, 7254, 10539, 14052, 14508, 15223, 21078, 30446, 36301, 42156, 45669, 60892, 72602, 91338, 108903, 137007, 145204, 182676, 217806, 274014, 326709, 435612, 471913, 548028, 653418, 943826, 1306836, 1415739, 1887652, 2831478, 4247217, 5662956, 8494434, 16988868]

約数ペア:

[(1, 16988868), (2, 8494434), (3, 5662956), (4, 4247217), (6, 2831478), (9, 1887652), (12, 1415739), (13, 1306836), (18, 943826), (26, 653418), (31, 548028), (36, 471913), (39, 435612), (52, 326709), (62, 274014), (78, 217806), (93, 182676), (117, 145204), (124, 137007), (156, 108903), (186, 91338), (234, 72602), (279, 60892), (372, 45669), (403, 42156), (468, 36301), (558, 30446), (806, 21078), (1116, 15223), (1171, 14508), (1209, 14052), (1612, 10539), (2342, 7254), (2418, 7026), (3513, 4836), (3627, 4684)]