21774075

素因数分解:

$3^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1$

素因数の和:224

約数の個数: 48

約数和(自身を含む): 37768416

約数和(自身を除く): 15994341

約数列:

[1, 3, 5, 15, 25, 41, 73, 75, 97, 123, 205, 219, 291, 365, 485, 615, 1025, 1095, 1455, 1825, 2425, 2993, 3075, 3977, 5475, 7081, 7275, 8979, 11931, 14965, 19885, 21243, 35405, 44895, 59655, 74825, 99425, 106215, 177025, 224475, 290321, 298275, 531075, 870963, 1451605, 4354815, 7258025, 21774075]

約数ペア:

[(1, 21774075), (3, 7258025), (5, 4354815), (15, 1451605), (25, 870963), (41, 531075), (73, 298275), (75, 290321), (97, 224475), (123, 177025), (205, 106215), (219, 99425), (291, 74825), (365, 59655), (485, 44895), (615, 35405), (1025, 21243), (1095, 19885), (1455, 14965), (1825, 11931), (2425, 8979), (2993, 7275), (3075, 7081), (3977, 5475)]