21872829

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{307}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 34062336

約数和(自身を除く): 12189507

約数列:

[1, 3, 11, 17, 33, 51, 127, 187, 307, 381, 561, 921, 1397, 2159, 3377, 4191, 5219, 6477, 10131, 15657, 23749, 38989, 57409, 71247, 116967, 172227, 428879, 662813, 1286637, 1988439, 7290943, 21872829]

約数ペア:

[(1, 21872829), (3, 7290943), (11, 1988439), (17, 1286637), (33, 662813), (51, 428879), (127, 172227), (187, 116967), (307, 71247), (381, 57409), (561, 38989), (921, 23749), (1397, 15657), (2159, 10131), (3377, 6477), (4191, 5219)]