27161820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{21557}}^1$

素因数の和:21579

約数の個数: 72

約数和(自身を含む): 94165344

約数和(自身を除く): 67003524

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 60, 63, 70, 84, 90, 105, 126, 140, 180, 210, 252, 315, 420, 630, 1260, 21557, 43114, 64671, 86228, 107785, 129342, 150899, 194013, 215570, 258684, 301798, 323355, 388026, 431140, 452697, 603596, 646710, 754495, 776052, 905394, 970065, 1293420, 1358091, 1508990, 1810788, 1940130, 2263485, 2716182, 3017980, 3880260, 4526970, 5432364, 6790455, 9053940, 13580910, 27161820]

約数ペア:

[(1, 27161820), (2, 13580910), (3, 9053940), (4, 6790455), (5, 5432364), (6, 4526970), (7, 3880260), (9, 3017980), (10, 2716182), (12, 2263485), (14, 1940130), (15, 1810788), (18, 1508990), (20, 1358091), (21, 1293420), (28, 970065), (30, 905394), (35, 776052), (36, 754495), (42, 646710), (45, 603596), (60, 452697), (63, 431140), (70, 388026), (84, 323355), (90, 301798), (105, 258684), (126, 215570), (140, 194013), (180, 150899), (210, 129342), (252, 107785), (315, 86228), (420, 64671), (630, 43114), (1260, 21557)]