31270743

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{6991}}^1$

素因数の和:7075

約数の個数: 24

約数和(自身を含む): 52356096

約数和(自身を除く): 21085353

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 6991, 20973, 48937, 62919, 146811, 440433, 496361, 1489083, 3474527, 4467249, 10423581, 31270743]

約数ペア:

[(1, 31270743), (3, 10423581), (7, 4467249), (9, 3474527), (21, 1489083), (63, 496361), (71, 440433), (213, 146811), (497, 62919), (639, 48937), (1491, 20973), (4473, 6991)]