21910196

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{223}}^1$

素因数の和:285

約数の個数: 72

約数和(自身を含む): 50050560

約数和(自身を除く): 28140364

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 29, 44, 58, 77, 116, 121, 154, 203, 223, 242, 308, 319, 406, 446, 484, 638, 812, 847, 892, 1276, 1561, 1694, 2233, 2453, 3122, 3388, 3509, 4466, 4906, 6244, 6467, 7018, 8932, 9812, 12934, 14036, 17171, 24563, 25868, 26983, 34342, 45269, 49126, 53966, 68684, 71137, 90538, 98252, 107932, 142274, 181076, 188881, 284548, 377762, 497959, 755524, 782507, 995918, 1565014, 1991836, 3130028, 5477549, 10955098, 21910196]

約数ペア:

[(1, 21910196), (2, 10955098), (4, 5477549), (7, 3130028), (11, 1991836), (14, 1565014), (22, 995918), (28, 782507), (29, 755524), (44, 497959), (58, 377762), (77, 284548), (116, 188881), (121, 181076), (154, 142274), (203, 107932), (223, 98252), (242, 90538), (308, 71137), (319, 68684), (406, 53966), (446, 49126), (484, 45269), (638, 34342), (812, 26983), (847, 25868), (892, 24563), (1276, 17171), (1561, 14036), (1694, 12934), (2233, 9812), (2453, 8932), (3122, 7018), (3388, 6467), (3509, 6244), (4466, 4906)]