20911914

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{16363}}^1$

素因数の和:16442

約数の個数: 24

約数和(自身を含む): 45950112

約数和(自身を除く): 25038198

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 213, 426, 639, 1278, 16363, 32726, 49089, 98178, 147267, 294534, 1161773, 2323546, 3485319, 6970638, 10455957, 20911914]

約数ペア:

[(1, 20911914), (2, 10455957), (3, 6970638), (6, 3485319), (9, 2323546), (18, 1161773), (71, 294534), (142, 147267), (213, 98178), (426, 49089), (639, 32726), (1278, 16363)]