21374795

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{2207}}^1$

素因数の和:2374

約数の個数: 16

約数和(自身を含む): 27820800

約数和(自身を除く): 6446005

約数列:

[1, 5, 13, 65, 149, 745, 1937, 2207, 9685, 11035, 28691, 143455, 328843, 1644215, 4274959, 21374795]

約数ペア:

[(1, 21374795), (5, 4274959), (13, 1644215), (65, 328843), (149, 143455), (745, 28691), (1937, 11035), (2207, 9685)]