21227408

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{69827}}^1$

素因数の和:69854

約数の個数: 20

約数和(自身を含む): 43293360

約数和(自身を除く): 22065952

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 69827, 139654, 279308, 558616, 1117232, 1326713, 2653426, 5306852, 10613704, 21227408]

約数ペア:

[(1, 21227408), (2, 10613704), (4, 5306852), (8, 2653426), (16, 1326713), (19, 1117232), (38, 558616), (76, 279308), (152, 139654), (304, 69827)]