420392763

素因数分解:

$3^2\times 7^1\times {\mathrm{887}}^1\times {\mathrm{7523}}^1$

素因数の和:8423

約数の個数: 24

約数和(自身を含む): 694856448

約数和(自身を除く): 274463685

約数列:

[1, 3, 7, 9, 21, 63, 887, 2661, 6209, 7523, 7983, 18627, 22569, 52661, 55881, 67707, 157983, 473949, 6672901, 20018703, 46710307, 60056109, 140130921, 420392763]

約数ペア:

[(1, 420392763), (3, 140130921), (7, 60056109), (9, 46710307), (21, 20018703), (63, 6672901), (887, 473949), (2661, 157983), (6209, 67707), (7523, 55881), (7983, 52661), (18627, 22569)]