21380458852

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{1499}}^1\times {\mathrm{3541}}^1$

素因数の和:5116

約数の個数: 48

約数和(自身を含む): 40166280000

約数和(自身を除く): 18785821148

約数列:

[1, 2, 4, 19, 38, 53, 76, 106, 212, 1007, 1499, 2014, 2998, 3541, 4028, 5996, 7082, 14164, 28481, 56962, 67279, 79447, 113924, 134558, 158894, 187673, 269116, 317788, 375346, 750692, 1509493, 3018986, 3565787, 5307959, 6037972, 7131574, 10615918, 14263148, 21231836, 100851221, 201702442, 281321827, 403404884, 562643654, 1125287308, 5345114713, 10690229426, 21380458852]

約数ペア:

[(1, 21380458852), (2, 10690229426), (4, 5345114713), (19, 1125287308), (38, 562643654), (53, 403404884), (76, 281321827), (106, 201702442), (212, 100851221), (1007, 21231836), (1499, 14263148), (2014, 10615918), (2998, 7131574), (3541, 6037972), (4028, 5307959), (5996, 3565787), (7082, 3018986), (14164, 1509493), (28481, 750692), (56962, 375346), (67279, 317788), (79447, 269116), (113924, 187673), (134558, 158894)]