20891838

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{349}}^1\times {\mathrm{907}}^1$

素因数の和:1272

約数の個数: 32

約数和(自身を含む): 45763200

約数和(自身を除く): 24871362

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 349, 698, 907, 1047, 1814, 2094, 2721, 3839, 5442, 7678, 9977, 11517, 19954, 23034, 29931, 59862, 316543, 633086, 949629, 1899258, 3481973, 6963946, 10445919, 20891838]

約数ペア:

[(1, 20891838), (2, 10445919), (3, 6963946), (6, 3481973), (11, 1899258), (22, 949629), (33, 633086), (66, 316543), (349, 59862), (698, 29931), (907, 23034), (1047, 19954), (1814, 11517), (2094, 9977), (2721, 7678), (3839, 5442)]