20828654

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{641}}^1$

素因数の和:872

約数の個数: 32

約数和(自身を含む): 39197952

約数和(自身を除く): 18369298

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 211, 422, 641, 1282, 1477, 2321, 2954, 4487, 4642, 7051, 8974, 14102, 16247, 32494, 49357, 98714, 135251, 270502, 946757, 1487761, 1893514, 2975522, 10414327, 20828654]

約数ペア:

[(1, 20828654), (2, 10414327), (7, 2975522), (11, 1893514), (14, 1487761), (22, 946757), (77, 270502), (154, 135251), (211, 98714), (422, 49357), (641, 32494), (1282, 16247), (1477, 14102), (2321, 8974), (2954, 7051), (4487, 4642)]