78708021

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{70717}}^1$

素因数の和:70780

約数の個数: 16

約数和(自身を含む): 122200704

約数和(自身を除く): 43492683

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 70717, 212151, 495019, 1485057, 3748001, 11244003, 26236007, 78708021]

約数ペア:

[(1, 78708021), (3, 26236007), (7, 11244003), (21, 3748001), (53, 1485057), (159, 495019), (371, 212151), (1113, 70717)]