208037571

素因数分解:

$3^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{23531}}^1$

素因数の和:23962

約数の個数: 16

約数和(自身を含む): 317776128

約数和(自身を除く): 109738557

約数列:

[1, 3, 7, 21, 421, 1263, 2947, 8841, 23531, 70593, 164717, 494151, 9906551, 29719653, 69345857, 208037571]

約数ペア:

[(1, 208037571), (3, 69345857), (7, 29719653), (21, 9906551), (421, 494151), (1263, 164717), (2947, 70593), (8841, 23531)]