331312306

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{1979}}^1$

素因数の和:2178

約数の個数: 32

約数和(自身を含む): 550851840

約数和(自身を除く): 219539534

約数列:

[1, 2, 13, 26, 47, 94, 137, 274, 611, 1222, 1781, 1979, 3562, 3958, 6439, 12878, 25727, 51454, 83707, 93013, 167414, 186026, 271123, 542246, 1209169, 2418338, 3524599, 7049198, 12742781, 25485562, 165656153, 331312306]

約数ペア:

[(1, 331312306), (2, 165656153), (13, 25485562), (26, 12742781), (47, 7049198), (94, 3524599), (137, 2418338), (274, 1209169), (611, 542246), (1222, 271123), (1781, 186026), (1979, 167414), (3562, 93013), (3958, 83707), (6439, 51454), (12878, 25727)]