20779922

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1$

素因数の和:242

約数の個数: 32

約数和(自身を含む): 33530112

約数和(自身を除く): 12750190

約数列:

[1, 2, 43, 47, 53, 86, 94, 97, 106, 194, 2021, 2279, 2491, 4042, 4171, 4558, 4559, 4982, 5141, 8342, 9118, 10282, 107113, 196037, 214226, 221063, 241627, 392074, 442126, 483254, 10389961, 20779922]

約数ペア:

[(1, 20779922), (2, 10389961), (43, 483254), (47, 442126), (53, 392074), (86, 241627), (94, 221063), (97, 214226), (106, 196037), (194, 107113), (2021, 10282), (2279, 9118), (2491, 8342), (4042, 5141), (4171, 4982), (4558, 4559)]