21373205

素因数分解:

$5^1\times 7^1\times {\mathrm{313}}^1\times {\mathrm{1951}}^1$

素因数の和:2276

約数の個数: 16

約数和(自身を含む): 29420544

約数和(自身を除く): 8047339

約数列:

[1, 5, 7, 35, 313, 1565, 1951, 2191, 9755, 10955, 13657, 68285, 610663, 3053315, 4274641, 21373205]

約数ペア:

[(1, 21373205), (5, 4274641), (7, 3053315), (35, 610663), (313, 68285), (1565, 13657), (1951, 10955), (2191, 9755)]