3931221

素因数分解:

$3^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{569}}^1$

素因数の和:633

約数の個数: 24

約数和(自身を含む): 6238080

約数和(自身を除く): 2306859

約数列:

[1, 3, 7, 21, 47, 49, 141, 147, 329, 569, 987, 1707, 2303, 3983, 6909, 11949, 26743, 27881, 80229, 83643, 187201, 561603, 1310407, 3931221]

約数ペア:

[(1, 3931221), (3, 1310407), (7, 561603), (21, 187201), (47, 83643), (49, 80229), (141, 27881), (147, 26743), (329, 11949), (569, 6909), (987, 3983), (1707, 2303)]