16638790

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{947}}^1$

素因数の和:1212

約数の個数: 32

約数和(自身を含む): 34401024

約数和(自身を除く): 17762234

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 251, 502, 947, 1255, 1757, 1894, 2510, 3514, 4735, 6629, 8785, 9470, 13258, 17570, 33145, 66290, 237697, 475394, 1188485, 1663879, 2376970, 3327758, 8319395, 16638790]

約数ペア:

[(1, 16638790), (2, 8319395), (5, 3327758), (7, 2376970), (10, 1663879), (14, 1188485), (35, 475394), (70, 237697), (251, 66290), (502, 33145), (947, 17570), (1255, 13258), (1757, 9470), (1894, 8785), (2510, 6629), (3514, 4735)]