21419916

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{13421}}^1$

素因数の和:13454

約数の個数: 48

約数和(自身を含む): 60130560

約数和(自身を除く): 38710644

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 57, 76, 84, 114, 133, 228, 266, 399, 532, 798, 1596, 13421, 26842, 40263, 53684, 80526, 93947, 161052, 187894, 254999, 281841, 375788, 509998, 563682, 764997, 1019996, 1127364, 1529994, 1784993, 3059988, 3569986, 5354979, 7139972, 10709958, 21419916]

約数ペア:

[(1, 21419916), (2, 10709958), (3, 7139972), (4, 5354979), (6, 3569986), (7, 3059988), (12, 1784993), (14, 1529994), (19, 1127364), (21, 1019996), (28, 764997), (38, 563682), (42, 509998), (57, 375788), (76, 281841), (84, 254999), (114, 187894), (133, 161052), (228, 93947), (266, 80526), (399, 53684), (532, 40263), (798, 26842), (1596, 13421)]