217508728

素因数分解:

$2^3\times {\mathrm{113}}^1\times {\mathrm{240607}}^1$

素因数の和:240726

約数の個数: 16

約数和(自身を含む): 411439680

約数和(自身を除く): 193930952

約数列:

[1, 2, 4, 8, 113, 226, 452, 904, 240607, 481214, 962428, 1924856, 27188591, 54377182, 108754364, 217508728]

約数ペア:

[(1, 217508728), (2, 108754364), (4, 54377182), (8, 27188591), (113, 1924856), (226, 962428), (452, 481214), (904, 240607)]