21091656838

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{1086191}}^1$

素因数の和:1086292

約数の個数: 32

約数和(自身を含む): 38581539840

約数和(自身を除く): 17489883002

約数列:

[1, 2, 7, 14, 19, 38, 73, 133, 146, 266, 511, 1022, 1387, 2774, 9709, 19418, 1086191, 2172382, 7603337, 15206674, 20637629, 41275258, 79291943, 144463403, 158583886, 288926806, 555043601, 1110087202, 1506546917, 3013093834, 10545828419, 21091656838]

約数ペア:

[(1, 21091656838), (2, 10545828419), (7, 3013093834), (14, 1506546917), (19, 1110087202), (38, 555043601), (73, 288926806), (133, 158583886), (146, 144463403), (266, 79291943), (511, 41275258), (1022, 20637629), (1387, 15206674), (2774, 7603337), (9709, 2172382), (19418, 1086191)]