21425403

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{383}}^1\times {\mathrm{643}}^1$

素因数の和:1058

約数の個数: 16

約数和(自身を含む): 29675520

約数和(自身を除く): 8250117

約数列:

[1, 3, 29, 87, 383, 643, 1149, 1929, 11107, 18647, 33321, 55941, 246269, 738807, 7141801, 21425403]

約数ペア:

[(1, 21425403), (3, 7141801), (29, 738807), (87, 246269), (383, 55941), (643, 33321), (1149, 18647), (1929, 11107)]