21348712

素因数分解:

$2^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{4951}}^1$

素因数の和:4982

約数の個数: 48

約数和(自身を含む): 50807520

約数和(自身を除く): 29458808

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 49, 56, 77, 88, 98, 154, 196, 308, 392, 539, 616, 1078, 2156, 4312, 4951, 9902, 19804, 34657, 39608, 54461, 69314, 108922, 138628, 217844, 242599, 277256, 381227, 435688, 485198, 762454, 970396, 1524908, 1940792, 2668589, 3049816, 5337178, 10674356, 21348712]

約数ペア:

[(1, 21348712), (2, 10674356), (4, 5337178), (7, 3049816), (8, 2668589), (11, 1940792), (14, 1524908), (22, 970396), (28, 762454), (44, 485198), (49, 435688), (56, 381227), (77, 277256), (88, 242599), (98, 217844), (154, 138628), (196, 108922), (308, 69314), (392, 54461), (539, 39608), (616, 34657), (1078, 19804), (2156, 9902), (4312, 4951)]