210849009

素因数分解:

$3^1\times 7^2\times {\mathrm{421}}^1\times {\mathrm{3407}}^1$

素因数の和:3845

約数の個数: 24

約数和(自身を含む): 327904128

約数和(自身を除く): 117055119

約数列:

[1, 3, 7, 21, 49, 147, 421, 1263, 2947, 3407, 8841, 10221, 20629, 23849, 61887, 71547, 166943, 500829, 1434347, 4303041, 10040429, 30121287, 70283003, 210849009]

約数ペア:

[(1, 210849009), (3, 70283003), (7, 30121287), (21, 10040429), (49, 4303041), (147, 1434347), (421, 500829), (1263, 166943), (2947, 71547), (3407, 61887), (8841, 23849), (10221, 20629)]