21095585

素因数分解:

$5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{131}}^1$

素因数の和:293

約数の個数: 32

約数和(自身を含む): 30108672

約数和(自身を除く): 9013087

約数列:

[1, 5, 7, 35, 43, 107, 131, 215, 301, 535, 655, 749, 917, 1505, 3745, 4585, 4601, 5633, 14017, 23005, 28165, 32207, 39431, 70085, 98119, 161035, 197155, 490595, 602731, 3013655, 4219117, 21095585]

約数ペア:

[(1, 21095585), (5, 4219117), (7, 3013655), (35, 602731), (43, 490595), (107, 197155), (131, 161035), (215, 98119), (301, 70085), (535, 39431), (655, 32207), (749, 28165), (917, 23005), (1505, 14017), (3745, 5633), (4585, 4601)]